These are all great points, and exactly the kind of questions I was hoping for. Much appreciated.
As far as ease of use, I enjoy both sides. I love WYSIWYG old analog monosynths, but I also enjoy reading manuals and fumbling around to discover capabilities. I may even try my hand at some simpler DIY modules. Like you though, I probably lean to the side of preferring one knob per function.
I'm definitely going to go back to the drawing board on the LFOs and ADSRs. You are absolutely right. I will check out your suggestions. I'll also start checking out multiple outs.
Thanks so much for your time. This is a dream project in the works, and I'm sure much of it will change as I start to build it and wrap my head around the pros and cons. I'll keep an eye on the forums and check in again in a few months when stage one is complete. Have a great day.