Sorry for the reminder to those who already know but reading the low tire pressure stuff sometimes makes me flinch.
Experimentation is great but finding the limit of front tire pressure is serious business. You will find the limit of front tire folding exactly at the moment you wish you were on the other side of it, i.e.. in the air at 30mph looking at a hard landing w/ a slight horizontal drift.
This is one limit you really need to sneak up on.
Careful out there.