I'm in the middle of collecting parts for a drop spindle swap and can't decide on caliper piston size... Is bigger better :Brow: ??? Im going to use wilwood 4 piston calipers on a 1 LE, 1.05" thick rotor. What piston dia would be best; 1.75, 1.62, or 1.38??? ou: Oh yeah, this is for a full weight 69 GS... Thanks Michael