MRT Bug Booster. Fit, forget, enjoy all laps being counted!! For £20 it's the easiest and cheapest answer to the problem. I think the Spektrum cap does the same job, but only for the Spektrum receiver, not the PT.
If you fancy it, an MRT PT clone is also available, and has the Bug Booster technology built in. I got one because I could easily change the lead length, the Bug Booster is built in, and if ever anything goes wrong I can easily get it replaced with the same PT number (can't do that with AMB).
HTH
