Trim is your friend. Let him help you. I like the idea of introduction to stall early on in lessons. Not just approach to stall, ie; "there's the buffet, now recover." But full stall, recover after the break. That way, early on you'll have an idea as to what to do if it should progress too far. My instructors idea of fast taxi was wheel landing, and keep the tail up for the length of the runway, then taxi back for takeoff. Sounds like you are progressing well, and learning in a Luscombe from the start is the "cat daddy". Keep up the good work.