I popped a Mini on my ProVari today just for kicks - by screwing a FULL sized ProTank base on it instead of the Mini base. Surprisingly, that's a fit - it doesn't look it, but it is. So if you like your minis, and you're picking up a ProTank, you could add in an extra base for like $1.50...
And I think the ProVari looks kinda cool like that
View attachment 275994