Sorry, I only just seen this, bit late now. Just fitted the MFW lowering kit to my Tiger Sport, it doesn't have the seat to peg room of the 800. I had to buy the bike specific bracket, then the drop & peg off the ST fitted. M&P were a lot cheaper than the sporttouring & don't get the bad reviews.
Has it given you the same seat to peg room as the 800? I would have quite liked a Sport but it was too cramped for me.