I should note that buffered mults really only have a specific use, that being to maintain scaling-critical CV voltages when a single CV is being used to drive four or more (as a rule) VCOs, VCFs, etc. If you're splitting a CV between two or three of these, you can probably make do with passives. Also, if you're talking about multiples for a build that's 2 x 104hp or smaller, the better thing to do is to use no multiple modules and instead use inline mults or stackcables, since builds like that are so small that every bit of panel needs to be dedicated to functional modules. Three 2 hp mult modules could just as easily be one 6 hp multiple VCA module...and believe me, you'll make far better use of the VCAs!