"not so confident on the various curved surfaces and what not"
If you've got a 3D printer, use your plastic-pooping-robot to print yourself some radius gauges, that's what I did.? I've got a set of 2-20mm internal/external radius gauges printed out now and that covers most of what I need, plus it's pretty easy to print more when you need them.? I print them about 1mm thick so they print pretty fast.? I wouldn't trust them for professional usage, but for light-duty hobby use - they work for me.
Don
