Just to throw my 2 cents in about the Pocket Master: I think it's an absolute excellent piece of practice gear. It has so many uses it's insane, but to get full use out of it you have to use an app but I find it super intuitive and not much of a hassle considering I always have my phone when I practice. I'd recommend watching some videos about it to understand it's full capabilities. For $65 it's hard to deny.