Some of it is gas, some of it is tuning, some of it is the bike's design.
I don't have problems with pinging, but I don't do WFO in low rpms (what's the point?). 6th speed is just fine for cruising- often I do leave it in 5th to avoid getting tickets, though.
How's the gas in Jersey? I know it's poor in SoCal. Here in Iowa, it seems pretty good.
MikeC- I would encourage you to consider getting a Stucchi Xover as well. Fitment issues aside, it really helped my bike out in the 3-5K rpm range.