I agree with you guys. My way of drawing involve a lot of "add extreme points + cleanup" method, and it is… painful to work like this in RF. Just a suggestion: on removing a point, maybe the opposite handle should be kept as is, at least? If recalculation of curve is hard, I don't see a reason why both handlelength should be affected. Am I clear?
(and yes, FLS' "optimize" algorithm performs well)