So far I’ve only had to purchase 2 things based off his advice this week. Three I guess if you include the side wheel he said can be modified. After I ordered it I did some more digging online and did find a fellow with the same scope I bought that made a video and discussed how he modified the index wheel for the scope. Up next will likely be a scope for the wife’s gun or another low cost clone rifle for a long term project, also his idea. Lol