[SG] 15mm and ground scale...

Hi,
I'm considering doing SG2 in 15mm and was wondering: Are most folks who
do 15mm using cm in place of inches (as recommended in the rules) or are
you remaining in inches? I think the smaller figures with bigger
movement might give the game a more sweeping feel but am curious what
others have chosen and why.

I'm sure this has probably come up before but the note on how to search
the Memory Bank isn't there anymore.