I've been riding two Bikes geared at 44x16 73.4 gear inches 110RPM@24MPH
and 47x17 72.2 gear inches 110RPM@23.6MPH
My rides have been averaging 65RPM usually with a high of 105-115RPM depending upon the hills I take and the traffic.
There is very little truly flat road where I ride.
I feel a little slow when starting and on the worst hills I am just about doing a Track Stand by the time I hit the peaks.
There have only been a couple of downhills where I got that "yikes" feeling when I started to spin up too high.
I would also like a bit more braking power and get my average RPMs up.
I'm planning to try going to 44x18 65.2 gear inches 110RPM@21.4MPH and 46x19 64.6 gear inches 110RPM@21.1MPH
Does that seem like small enough change to not be too drastic but enough to make a difference?