[slimthelineman]

yeah i will second that. the mmp is indeed an excellent speed control! run one in my 4x4 slash with a duo 550 on 3s, lap times are about the same or slightly slower than my buggies. tried both the sensored only and smartsense but found temps were a little cooler and the truck would do an extra 2-4 laps in smartsense so there it stayed. castle really has had the right stuff when it comes to programming your speedo for a long time, not like other "innovators" or copycats....... (insert name here then ad "link" to the end)not to mention their integrity in the products they produce. no need for some crappy loyalty program, customers are loyal because the products rock!!!!! and when they do encounter problems they have outstanding tech people you can speak with to figure out what needs to happen.