How fast have you gotten your E-Lux to?

I've gotten my Tahoe Sport up to 28 on flat ground but I have to help out a good bit - I imagine it could do it easier if you were a normal sized person (half my size, or so! lol).

But generally I cruise in assist level 3 (18mph) or 4 (~24 mph) and it maintains it no problem when the battery is fresher. Drops a couple mph as voltage drops.