Thanks for the replies.

My greater focus is on endurance or higher mileage rides, as opposed to racing. Therefore, I was trying to avoid too great a drop from the saddle to the handlebars.

I figured since I have shorter legs, I would need a lower seatpost.

When reading the maxes on the saddle rails, is the max adjustment in relation to the top plate, or bottom plate that holds the saddle? If it's the bottom, this saddle only has about a couple mm or so on each side when the saddle is in the middle for adjustment.

I have tried a 54 cm frame, but the seatpost was pretty high, I must say.