No way, it's hard enough to see the screws on "O" gauge products, especially when you drop one, I could be looking for an "HO" screw for a month and never find it.
As we get older we don't see as good so they're no way I'll ever go smaller. Plus I love the look of the size of "O" Gauge ever though mine are the smaller size since my trains have to be able to get around O-31 & 36 curves due to space limitations. No way I'm starting over again, with my knees this is the last layout I'm building. Just had my second left knee surgery in 3-1/2 years on Wednesday so I'm stalled out again from working on the layout I had been building. It's "O" or nothing for me!