I've found the MylarMelodies video series about building a live performance rack valuable as a resource in my own journey. I stumbled upon his videos about a year ago and found some solutions to the exact problems I was having in building a similar setup. The key is to keep things moving forward and avoid a stagnant groove. Just a few inexpensive utilities and modulation tools can really help with that. Here's a video about sample and hold that helped me achieve what I was trying to do. His videos on switched multiples and VCAs were helpful too. I shared a longer one on CardiacTasty's post a week or so ago that covered the broader philosophy and design of a live techno rack. Helpful stuff.
Have fun and good luck.