RE: Tip Stall
If you're having troubles with stalls on landing approaches, then you really are slowing down too much. Don't hold so much up elevator during the descent, let the nose stay a little lower, and pull up closer to the runway.
My over-weight CAP would tip stall very quickly and was rather nasty about it. To land it, I'd almost dive at the end of the runway, then pull out and fly down the runway few inches up, and let the plane settle on to the wheels. No long, nose-up descents with that plane.