One pro tip
10 minutes before you start to fap, put your hand in uncomfortable position behind your back [try to touch your neck or whatever] and wait till it gets tenselyed. After you feel stiffed or whatever start jerking, it will feel like some grill is giving you a handjob.
I did it as a teenager. Wasn't bad tbh.
It's still your hand, your dick doesn't know if your hand it's feeling weird, only your hand does. it's the exact same hand it's always had on it. 100% if that worked for you, you are just tricking your brain not your dick.
So essentialy you want to say that grill's handjob is same as self-masturbation?
You are aware that that's your hand but you have different feeling, it's softer and more satisfiing. It leasts for 2-3 minutes and then you can start edging or whatever you want.