I know you are not primarly a guitar player but i am, and i always hold my pick with three fingers and my teacher says i should switch to a different grip to make it easier, the thing is my grip feels really natural since ive been using it for a long time and i wanted to know if i should switch to the other to maybe improve my skills but have a tough time getting used to it or just stick to what i know and feel comfortable with?
in this case, i think you should stay with your method. for 2 reasons, because it's comfortable, and because you've been doing it a long time. both of those reasons combined tell me that you should stay with your way. there are some situations where you might want to take expert advice (like for example if you are a beginniner or something) but in your situation i think that does not apply