I have a timebuilding job and am questioning how much better it is going to make me at passing training. It has improved confidence in general, but I did some training in a full motion sim and I got my butt kicked, with all the other stuff going on in an airline cockpit. I think the only thing that is going to really help is training in a crj/turboprop simulator going over flows, checklist, and procedures that 121 cockpits use. Going through everything as quick as the airlines would want you would just have to accept what you were susposed to do, without thinking at all in the airplane, after you got on the line seemed like when you would begin to get really comfortable. Thats probably why its compared to drinking from a firehose.