RE: Lightest valve setup?
A few onces of savings is not going to matter on this jet. YOU WANT A SETUP THAT WORKS!!!!! The FEJM all in one valve works well but does have a fair amount of weight to it and it needs some room to mount it. I would go with a UP3 valve and mini servo, Air power elec brake valve (very light) and Tams failsafe, also very lightweight.
Vin...