Re: radius and bends
So, here it, my Opus -
If the neck is very rounded, say old fender 7.5 radius, when you bend up the string stays in the saddle, but the frets get relatively higher. You will never be able to get a clean bend without buzz.
9.5 radius to me is still to much of a hill - and many people like it, but a good old fashioned Albert King bend, unless you have the strings with very high action, you'll still get buzz.
My favorite is 18 or 20. When you bend the string the rest of the board is almost flat so it doesn't raise much at all and is almost a flat bend on the frets.
I do what I think most people would roll their eyes at me. That's OK. I got a Strat that was 9.5 radius. If I bent beyond the middle of the neck from nut to last fret, it would fret out. Two highly regarded guitar builders and repairers told me they would flatten em out. They took strings off, creating an unnatural and flattened board, then retuning it up, putting back the slight relief that was their from the strings being back on.
I said F..k it, put my guitar W/Strings tuned to pitch. Took a firm flat piece of glass, about 1/4 inch, stuck some 220 grit on it (I had raised the bridge and retuned-forgot to say) and sanded the frets flat I mean flat on most of the middle neck, from nut to last fret. Took the strings off, and flattened the wood between the frets. FLAT, Putting the strings back after fine sanding the fret board with 400 grit, I essentially made a flat, not scooped neck, with lots of room between my finger and the fretboard, crowned the frets, which were now flat with some actual pro files, crowns, edgers, etc.
I now have a comfy neck the will not buzz if you bent it around the world. Also bending is WAY easier as there is a lot of room to get the string in the middle of my finger pad and never have to fight to keep my finger from slipping on long bends.
Thanks for reading, hope some of it helped.
SJ