Now then Andy, I'm also in Leeds & also new to this forum. Training at Hunslet Pure and a couple of the smaller spit & sawdust places.
I'm cutting at the moment after winter bulking (and some indulgence). Main mistake I used to make whilst trying to bulk was not eating enough. I felt like I was but once I started tracking my caloric intake I was eating at about maintenance or sometimes slightly below. But make sure it is clean if you are like me and find it difficult to shift the excess bf gained through a bulk.
Enjoy man, I love bulking mainly because I love eating.