Very true Pete, and I'm probably doing my best to over think things, but this being the first plane I've built I've not yet got the experience to say 'that will be fine'.
I've just seen your blog update, and the hot wire cutting for the retracts and servos looks excellent. My agricultural approach (dremmel and vacuum cleaner) is nowhere near as neat.
Phil, did you get some Jet Craft retracts? or was it just Steve that stole the last set that should have been mine, not that I'm bitter... I've had lots of fun with Hobby king retract and now have two spare!