The center of gravity makes a difference.
The lower it is the easier the bike is to handle.
But flat footed is best for me.

 

I have a '17 Road Glide, about 855# and a BMW 1200 GSA, about 564 pounds. Even tiptoeing, the 564 is still easier to move around by foot than the 855, and is easier to get back upright if it starts to get away, even though the center of gravity is higher. 300# is a lot of weight for the average person. That being said, my Harley isn't going away anytime soon, I hope.

 

Tough choice! It's hard to dismiss the lighter bike with a higher center of gravity in the twisties. It's also hard to dismiss the heavier, lower bike for those long days in the saddle. I suppose, like most things, it's going to be a compromise for the conditions one finds themselves in most often. Though, since I've switched from my BMW R1200RT to my Ultra, I don't miss those occasional calf cramps I'd get when stopping after a prolonged run.

 

This guy can do it, and he's just a little shorter than you.

 

I had my seat modified by MCC, got rid of the air shocks, put HD adjustable on, made a huge improvement. Went from tip toes to flat footed. Lowered my CG, still a hard bike to manage for me, finally sold it went to a trike.

Best thing to do is rent each one, 1/2 day on each will tell you what you want to know.

 

My opinion, pick the one you like better and deal with the problem it causes.

Why ride a bike.that is better fitted to you but you hate the ride or look?

 

I like to be flat footed with a little bend in my knees, but that's me you have to do what you think is comfortable and stable.

 

well, i would love to be able to flat foot my road glide. but i can't. so i deal with it as best as i can. mostly just takes a bit of common sense when you get into parking. if the spot is tilted down, back in. if the spot is slanted up, pull in. that way you're not having to try to push your bike uphill in either scenario.

i've already got the 12'' shocks, low cvo seat, and decent soles on my shoes. i'm not going to logger boots, and i'm not going to degrade the ride quality of my bike with lower suspension. oh, i've had the bike 4 years now, and haven't dropped it yet. (hope i didn't just jinx myself lol)

 

 

When your legs are a god given length you may have to make the bike fit you.