Hey Chap, I recently got the F1 Master that is listed down the page just a bit. I like the fact that the display is remoted to the shooting table where it is more protected. And at $15 more than the plain F1 it is a good deal at that price, I think I paid about 5 or 10 dollars more than the sale price they have on it. I haven't used it a lot yet but so far it seems to work just fine.