Question on PCB and routing

[Fivetide]

Capacitors aren't resistors ;)

I usually go for 220uF electrolytics of a suitable volatge for throughole linear regulators, but that's probably overkill.
I'll check some datasheets later to see what you can get away with.

Thanks MC very much appreciated, I’d like to think of this project as evolving so adding things to make it better is exactly right

I have some 220 uF 25v Low ESR 8mm dia x 15 mm high 3.5 mm LS ( UPW1E221MPD) from a project also some Panasonic small-form but not sure what stats