i buy quite a few scratch building bits from ken o, racing in the states, its cheap even with p&p than a lot of items here in the uk. i lost a spring and brush from a new motor. because i,m changing ebay accounts there would be a delay in payment, so he pulled 2 brushes and springs off of a new motor and sent them to me with a note to pay him when the paypals sorted. anyone had this sort of service? i was gobsmacked! a true gent and enthusiast, hats off to you ken. john.