I have 2 ‘main’ scrapers that I use; both 0 degree included rake (aka, ground on the front, not ground on the top). I plan on converting one of them to a negative rake so I can use it on the inside of bowls and I got to thinking - can a negative rake scraper do everything that a positive rake angle one can? Should I just plan on converting both of mine (I like to keep one ‘straight-ish’ and the other with a sweeping curve on the left side).