Hello pinsiders,
We have had trouble with a NGG on location for quite a while. The left lock shot, under the gopher ramp, rejects a high percentage of the shots and the ball will unfortunately return and a lot of times go STDM. This is happening when the gopher is down. The backtrap assembly bracket looks fine as nothing is broken or bent. Yesterday , I tried adjusting the height of the gopher and still had the same issues. The other tech at the location, thinks the issue is with the top of the gopher(the metal plate). He thinks there may be an issue with the spring in the gopher assembly. I see where both gophers do have some spring movement in them, probably when the ball strikes them. This had worked fine for quite a while and now is pretty bad. Has anybody else run into this problem ? Both gopher ramps work fine. Does the top of the gopher slow down the ball ?
Any help or ideas would be greatly appreciated !!

thanks, I will give this a try