Many thanks Steve, pretty much solves the mystery. Thought I got a sweet deal on the TT75A but think after upgrading to SSQA won't be so sweet:-( Also think the longer we wait the more attachments will wind up 'slightly modified' to fit only that machine. Likely we will wind up with a skid steer in the near future so guess its time to take the plunge and order the proper bits, ouch. Not looking forward to explaining that one to the misses/accountant!