hello
i have a BIII 8.5, with the 65cm bar - however, (and maybe this is just me) i found the bar to slow to manage the kite properly. using handles were great - and i use 40m lines. if you get the line set up right on handles, you should not need to adjust them for the bar. although i haven't used the cross over kit yet, i still think bars are best for water only...