I know this isn’t really what you’re after, but having spent years using my mono 64 as a clip launcher, I bought a (very cheap) Push 1 last year and the difference has been astonishing.
Event factoring in the extra size of the 256, I would definitely recommend thinking about a dedicated clip controller… I’ve found that the RBG pads and tighter integration / navigation make the whole process much easier to follow, plus it frees up my monome to control different apps or sequencers alongside the main grid.
Obviously depends on exactly how you’re approaching things, but switching to a Push really did make me realise that monome clip launching can be quite limited.