hi, i spent too long trying to get the mk5 suit up pieces over the racesuit & failed to get them to close so i took my thinnest body sanded down the arm muscles & put it into my dj customs set but with the suit up head then put the dj helmet & 3rd party head on the ht racesuit. so i now have the suit up complete that will never be changed & a brand new helmeted racesuit tony.