I've had nothing but bad experiences so far with any instructor I could "afford". Because of this I just gave up and purchased a bunch of books, V1 software, a camera, and watch youtube. My swing is about where I like it now and I know what type of swing or swings do not fit me (I tried every system to see what it's like). I feel good about my game overall but I feel I'm ready to get some advanced teaching. My swing mostly falls in line with 5SK so I'm saving up to take some lessons from Dave and Erik, it's a 6 hour drive from my house though so need lodging too probably.