Right on steve thanks for your thoughts. However I thought going to the 17 44 would actually hurt low end and raise top end speed. Im no expert either hope they do chime in here.
I bought the 17/44 kit just because I figured I'd need it sooner or later, but I'm still on the chain that came with my used bike and I assume it's OEM ratio.
I understood the whole thing about the 17/44 was to reduce the "buzzy" part of freeway riding and then a bonus was to reduce the weight of the chain.
I just took everyone's word for it as I haven't installed it yet, even after 5 years
Few things change a bike like the gear ratio, but the 919's known for being buzzy up high (up high is an odd term because others have much higher redlines).
Do you really want to be that high in the RPM range?
On a quick side note, I just replaced me filter with a K&N and noticed a small boost in the low/mid area.
One thing that I'd be concerned about is the condition of other things on the bike. Some common mods are the PAIRs, flapper (intake), PCIII, CAT, Exhaust... If these can kick the torque up a bit, maybe that would be better reduce the need for the gear change.