lopat,
you have no clue how crappy my first flies were. My first flies were tied with (no joke) sewing thread, golden lab hair, and hawk feather all on a snell hook locked between a pair of vice grips taped to the kitchen table lol I've come a long way since then lol
About finishing, I think that if you want to whip finish you should learn to do it by hand (just my opinion) I could never get the tool to work for me and just found using my finers simpler and quicker. You can find a bunch of videos on youtube but here's the one I learned from:
POLARIS FLIES - HAND WHIP FINISHING - NEW FLY TYING VIDEOS
What problems are you having with wing cases? Maybe I can help you out