Leonard and all. I gave Bilge keeks on My MT50. They are supposed to take Out 10% of the roll but I have not seen That in 17 years of cruising in all kinds of sea conditions They are big pieces of wood like a 2x6 about 8 ft or so long they bolted to Hull about on 8 “ Centers and glassed over. The boat itself has a 5 ft keel but these Bilge keeks I do not think will keep the boat from flopping Over in the mud. They are at the turn Of the Bilge. I have seen European hulls sailboats with Twin keels That keep boat up right when the tide goes out Bob Kovach Sent from my iPhone Chief Engineer Bob Kovach (KJ4UGE) Onboard M/Y ALLEZ! GOLD LOOPER 5-2-2016 MTOA2631, USCG-CWOA, WRCC, AGLCA-1979, USPS CHARLESTON, S.C.