If these are the same retracts that came on a nitromodels P-51, they are non-adjustable in regards to up and down locks. Travel is the only adjustment and even if it's perfect there is still to much slop in the mechanism.

The P-51 had over a inch and a half of side to side play when finished.

I did not want to fly with these and decided to remove them and put in a pair of cheap Hobbico retracts. I did'nt even have to change the rod as the travels were the same.