not sure whether a "cheap" one gives you the right impression - try to test one in a shop that has tons of adjustability (the cheap ones mostly lack adjustability) as IMO it is absolutely crucial to "personalize" your release for the best outcome. E.g. releases like the Stan Perfex (definitely not cheap!) allows you to test it as a 2, 3, or 4 finger and comes with various posts to facilitate a wide range of thumb positions, and of course you can adjust the sensitivity of the trigger etc..