Do you sell the MP60 wetside magnet only? the part with the magnet and propeller. I have 2ea MP10, four MP40 and 2 MP60 with around 10 radions with all difference gen in my 7 years in the hobby. So far so good except 1 MP40 and 1 MP60 magnet crack and rush. I alway have extra set of MP40 wetside so not worry much about them but the MP60 is the part that worrying me now. Thx