I would imagine an ST4 would do better for you... multi is a bit harder edged than you seem to want.
Just my $.02

I have no S... my wife likes my no S.... maybe I should re-type that! Mine is the plain jane version and I like it a lot, I have not tried the refined S version so I would think it is even better since Ohlins is the good stuff and carbon fiber is waaayyy cool.
I find it handles just fine for me and ...

I am 6'-7" also and a sprightly 300... this fits the best of any bike around and I too have no problem with the suspension settings, I cranked up the pre-load knob thingie and she seems planted to the road and I ride some bumpy crappy ones!
Had her out again today, fab time, lots of twisting and fun ...

Hey possible duc dude,

I am 6-7 and 300 ish and I love my multi, this thing rocks! Lots of room and power and handling and it looks cool to my eye.

I am sure you will love yours when you get it... just make sure you get one and experience it, it is an amazing design.