Sorry should have worded that better, not a go on a Thruxton but an IAM track day at Thruxton race circuit. The IAM have unique access to that circuit for two bike track days a year, not the same as a full blown track day (is IAM controlled after all) but no need for leathers, scrutineering or sound check and you can go from 1 to 1 tutoring to pretty much doing your own thing within reason.
IAM (and other training methods) will all help with postioning and gear changing but you're right, smooth control of the bike owes a huge amount to experience and just putting the miles in, sounds like you're managing that okay though ; )
