Banged on this A LOT. Instead of having a bunch of Mutable modules, I opted for the ultimate tweak-head ones: Buchla. Or rather, the Tiptop reissues of the original Buchla 200 modules. Then I built around that.
That is a massive reply, I won't go into all of it simply because of your answer's complexity and the amount of reconfiguring you've done. First, let me say your input made for some very interesting reading. I like that you took the few modules I already had and built a buchla tiptop rack from there, but ultimately the finished product is too big of a challenge for me -- Both musically and financially. A lot of these modules are also on backorder with no timeframe for when they'll be back in stock (I live quite far from everything) and I haven't seen a single Tiptop buchla module pop up on my local used exchange... This probably means they are keepers, which is a great thing, and you've certainly opened my eyes to incorporating some buchla elements into my system. The whole idea of combining East and West coast also appeals to me. I'm especially intrigued by the Dual Oscillator Model 258t, the Source of Uncertainty Model 266t and the Dannysound Timbre.
Well, the four Electrosmith VCAs aren't a bad idea...for modulation and CVs. These are linear, DC-coupled VCAs, which are better used for those purposes. For audio, you want exponential VCAs with AC-coupling, which is why you often see VCAs such as Veils, Intellijel's Dual VCA, etc used so often; since these have a control per VCA that can shift the VCA's response between full linear and full exponential.
That is a perfect explanation of something my system is clearly missing. Thank you!
Gonna mess with this, starting with a bigger and portable cab off the bat.
Portability is not an issue for me. I won't be playing any gigs nor bring the system travelling. I can see why you went with the bigger case, but what I like about the doepfer low cost base is that I can always add another doepfter lowcost ontop of it. I also quite enjoy that it's made of wood, which makes easier to either paint or varnish or even leave raw.
While it definitely costs more than the initial plan, you probably won't need to add anything to this for years to come. You WON'T exhaust this build's possibilities!
I'm overwhelmed by the thought you put into this rack on my behalf. I've read your module rundown multiple times now and am more impressed each time with how you've shaped it. I will definitely return to it again and again as I learn more about eurorack in general. Again, thank you very much!