by 1.09. this should be the distance from the top of the saddle to the pedal platform, when the pedal is at the bottom of its stroke, not when it is in line with the seat tube.
3). put your bike on a trainer and get into your normal riding position. put your heels on the pedals and back pedal. raise the saddle height until you just start to rock side to side on the saddle, then back it down a tad. you can also just go for a ride on your bike to do this. with the sun at your back, you can watch your shadow to see when you 