In reply to Richard Carter: I mainly train at the start of the year for a couple of months doing finger boarding, core, pressups..etc and weights for general conditioning/balance then get outdoors once a week whilst bouldering indoors a few times until I start to feel stagnant/weaker or the weather craps out.
Indoors, I try and climb problems of similar length/angle to the projects I have outside and occasionally try and set problems which replicate the moves/holds but still do a couple of sessions just climbing lots of problems on all angles.