I think it is usually thought of as the "other way around"
the 99 is considered a 3/4 size machine, and yes is it a little 66...(also a fancy 192 AKA "spartan")
the 28's and 128's are also 3/4 size 27's and 127's
and then the 185 is also a 3/4 size machine but I dont know of what.... it is basicly the 99 in an "updated" aluminum body.