Tired of Body Filler Hardening Too Quickly?

I always seem to use too much hardner, but when its 108 here in Tx. ////////// guess I just got to be quicker!!
I've made them perfect and then hated to drive them, especially if they were worth more than I could justify having for a toy. Cars always came and went.
Now I get rid of the rust, make them solid and when someone looks to buy my "not so perfect" car I tell them I built a car to drive and WHEN you hit 74 maybe your work will be less critical!!!! People want a $10,000 BJ paint job for $1000 and the car thrown in for free.:poke::steering: