If the MRT was the SAME as a AMB PT, then that would be breach of patent wouldn't it?? Hence something got to of been left out to make it only 99% the same??
As for cost, right, 5 of us race in my house, I have two PT's (OK, one is an older red PT) but the rest are all MRT's. Racing doesn't cost 'much' but adding 5 new PT's would be a huge bill to swollow.
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