[LuvDog]

I'm not tall either 5'6" and I have never been able to flat foot either.

Backing a bike up especially on an incline on a sandy driveway/road sucks ass. I usually have to get off and push too.

That being said, I haven't lowered my bikes... I just deal.

Like I said in my first post... try shaving the seat down. Just making it a little lower... and mostly narrower will probably help a lot.