Yes, yes, yes! When one snips springs be *sure* to use very fine-nosed
pliers to "turn in" the small bit that sticks out. This is difficult to
describe in words, but when one cuts the spring, a very short amount (less
than 1/16th of a turn) winds up sticking out -- pointing away from the
main body of the spring. If you tried to sit the spring upright on a flat
surface you wouldn't be able to because of this short bit. This may
impair the smooth movement of the point.
I will try your method of heating to see if I can master it.