I hate slipping or losing an edge while trying to sprint, turn or stop hard. That sounds like smaller ROH might fix the grip issue.
No balance. That might be the pitch and/or radius. Do you feel like your skates are pushing you back on your heels while doing deep cross overs (going with positive or aggressive pitch would help)? Or do you feel like your skates make it like you are tripping on the tip of your toes (negative pitch would help)? Sometimes, skates and blade holders have built in aggressive pitch which may or may not work with you.
A larger radius profile may make the skates feel like you've lost agility, like ability to pivot quickly going backwards to forwards and vice versa, or you cannot turn in deep and hard, like you are skating on cross-country skis. A smaller profile would help, or if you go with a multi-radius profile, a smaller front radius would help.
If you still have your old Reeboks, one thing would be to ask the sharpener to find out the radius and ROH on your old skates and put that on your new skates.
Just read the post before this... sounds like I just regurgitated what was written. 😂 LOL. Good luck.