I've had some bad luck lately on the boat breaking off stainless screws, so I'm a bit skittish with npt fittings. One thing is it's hard to judge the tightness in most cases because there isn't much room to work and I can only get maybe 1/4-1/2 turn at a time. I changed out a fitting that someone else put in and they didn't have any threads showing. (first time I've seen that) anyways it's a brass fitting going into aluminum so I'm not going to get carried away. When I put in the new 1/4" npt fitting I had about 3 threads showing and it really wasnt wasnt any tighter than the one with all the threads in. I felt it was going to be too tight to make it one more full turn to get it back in the correct position. Opinions? It's doesn't seem like it's going to go anywhere, moving it by hand. Should I just check for leaks? Or give it another turn?