3 day split performed 6 times a week... anyone tried anything similiar?

Have been curious about weight training 6 days per week ever since reading about the upper/lower body AM/PM suggestion in the HST FAQ. 
 
I recently read this...
 
A big change I made to my training was to increase my training from 3-4 times a week to 6 times, training each body part twice a week. But training each body part twice a week surely I would over train? You’ll be surprised. Once you increase your frequency and volume of your workouts the body will adapt and recover a lot quicker which means training body parts more often resulting in more muscle gains and we all want that right?
 
I split my body over 3 days, the first 3 days I trained heavy, keeping the reps in the 6-8 range. I then repeated my body split the following 3 days but training lighter and upping the reps to 20 and my rest down to 30-60 seconds.
 
I started this training in April 2006 and by July I had put on 7lbs of lean muscle. I was shocked. I hadn’t made that much progress since I first started training and here I was 17 years into my training and making gains like I was a beginner!
 

 
So I challenge you to radically change your training around and see what happens.
 
Good luck! 
 
Peter
 
Link here...
http://www.naturalphysique.co.uk/Articles(howITransformedMyPhysique).html
 
Don't remember reading any like this before.
 
Has anyone tried anything similiar? Any experiences, thoughts...?