My ideal ROH is between 7/16 and 3/8. I like it SUPER agressive and sharp. I do all doubles and am working on trying to get my double axel back soon (i've been working on that on and off, but working for nationals now instead). I will notice my blades starting to get dull if my takeoff for my double salchow and double toe get less grippy. I don't like skidding in the slightest and will usually abort a jump if i even think i'm going to get close to skidding a takeoff.
I weigh 115 and our ice is usually pretty soft unless it's a freezing day, so I'm super spoiled.