Yeah, after riding around 100 very hilly miles and some flats around here, I think I do need quite a range. For now, a change of crank to a 46 35 24 triple with the 11-34 cassette will work, but with a lot of effort going up the steepest hills - partially caused by not being in good cycling shape. Rolling hills and inclines are just fine. I've probably forgotten that the particular hills that challenge me also challenged me on the bikes in the early season (I haven't ridden since last fall). I think it will work OK though as I get in better shape and more patient and accustomed with the slow uphill speed.

I've found that I don't think I need the high gears that I use on my road bikes (50X11). Probably even a 46t big ring would do. I'm not comfortable pedaling at high speed, say above 25mph, while I pedal comfortably beyond 30mph before coasting on the bike.

There's some sway in the trike when I pedal at that high speed - I'm pretty sure it's technique-related. I need to smooth out the pedal stroke; it's different than a bike, and seems to be getting better when I concentrate on it. The sway isn't as noticeable at lower speeds and doesn't bother me until I get going faster. So I tend to coast sooner than I would on the bike.

It coasts "on rails" on the fast downhills and is very stable and fun. 41.2 mph so far, while easing into the speed, being careful and testing the brakes! I have done 45+ on that particular hill on the bike, so I'm not concerned with going any faster on the trike. =8-0 (going up that hill is one of the challenging ones!)