This may be helpful to some w/ the old style Danforth Constellation 4" flush mount that came in the early Stinger. I just bought my 86 stinger last week and the compass is leaking. I assume some others may have the same problem. I took mine apart and found the dome is cracked all the way through. Danforth does not make the old style dome any more so it took me a while to find one. Anyway if you need one Viking Instruments has them (978) 282-5271. I think its about $60