I cut closer to the finished line (~1/16” off) and use a shaper with helical head + bearing and tear out / cutting against the grain is not an issue....
All my reciprocating saws are Milwaukee Sawzalls. I have 3 corded ones, and the original M18 (not Fuel). I want to get the fuel version but this one...
I don’t know about getting them out but you might try calling Western Roller and talking to them. They can likely put new rollers of various hardness...