Pin press - worthwhile???

Just a quick one really - due to my back injury reducing drastically my ability to squat and deadlift, I am taking the opportunity to try and address my woefull bench. I'm training bench twice a week ans on one of the sessions am using the pin press to push the boundaries ( I rarely train with a spotter - much prefer to enter my own private world and focus really tightly). 
 
It's certainly working insomuch as my pin press is certainly getting better. Here's the question though - how much genuine carryover do people think there is to a powerlifting strict bench press?  The way I have to have it set is about 2 inch above the chest (nearest pin placement available), so it's really a partial with a limited negative phase. It's tough to get the thing moving from a partial height for sure, and I am doing other benching drills, lots of CGBP work, benching wth chains, and once a fortnight getting spotters in place to do some proper PB attampts strict - but my regular progress sessions are off the pins.
 
Am I wsting my time? Should I forget the pins and swallow my preferences and train with a spotter more often? Do others use the pin press as a central exercise for increasing bench?
 
Thanks in advance folks ...

I think pin presses from halfway up are useful if your going equipped but not so much use for a raw lifter. Doing them as you are tho just off the chest or if possible on chest and doing them from a dead stop really helps the raw lifter though and i've had success from them myself.
 
I've also found slingshot work very helpful too if only to overload my triceps at the end of a heavy session and get you used to handling heavier weights than you can raw.
 
I train alone too with no spotters and personally prefer it, i just set the pins so if i fail the pins will catch it for me. Sounds like your doing ok to me mate.
 
 

Try it and see, always the best way. I have always loved the bench and have excelled at it (maybe genetics maybe not) and have incorporated very heavy partials as a great strength builder. 
 
I always found that very heavy partial reps (I'm guessing this is what you are doing here?) get me ready for a weight when lifting full rom. This wasn't just about improving a particular phase for example lock out or as Ox has said for a suited bench as I have always benched raw.
 
But I found that it seemed to help me whether mentally or neurologically to lift heavier. Last year I started seriously benching again with a veiw to an attempt on the British vets record, but sustained a shoulder injury that is only just clearing up. But subsequently started training seriously again and having a read, Andy Bolton came to the same conclusion as myself with regards to heavy partials and aclimatising yourself so maybe there is something in it.

Cheers gents. You´re right in as much as they are heavy partial. I am raw too. They're simply my only regular way to overload safely. 
 
I've nipped into Ralls a few times lately so hopefully will be able to glean some knowledge from Andy etc in due course. 
 
For now I´ll leave the pin press in there but certainly have a look at setting up some slingshot reps too if I can. 

Personally I'd rather do another session of straight benching. In your case if you going to train bench twice a week. I would bench straight both times followed by a decent assistance lift. Pin presses could be one of those.

you could always raise the bench a bit and press from the chest...

Ha ha  scruffy- good point. . . I'll move it to assistance lift but pop the bench on a couple of platforms too, that'll get it closer to the chest. Simple but effective. 
 

I like pin press. I lift equipped but my training partner lifts raw & we both use this to press through our weakest point. We start just below the point we want to press through, set up as we would a full bench then drive the dead weight up & we AWLAYS kill the weight again once it's back on the pins so there is no bounce. Always done heavy for 3's-5's. I feel it helps to keep driving when it feels like the bugger has stopped when doing conventional bench, I really think this needs to be mentally reinforced as well as physically.

I think Tan is on it, its doing the movement right that counts.

In my place the guys use blocks for partials and breaking their shirts in, and I am using that method, and if you perform it properly without bouncing its like Tan describes too.

I work the pin press for singles only - at the very limit of my ability, so there's no bouncing ... can't always claim that I fully control the negative though, as much as I try

It usually takes to my 2nd rep to get the line right.

Better than me then Tan - my reps are all ropey!

Why not board press?  (though you will need a partner)
I found pin press to be murder on the shoulders after a while and very difficult not to lose your arc.  Pin press, to me, does not simulate a partial rep in the manner that board presses do - I'm sure there's some technical reason for this but i don't know it.
Chains are brilliant for bench press too.
(not so bands - nightmare)