Joe, You idea for a backstay tensioner should work just fine. Put the proper rake in the rig with the forestay. then use the backstay tensioner to tighten the backstay forestay, bend mast slightly (flattens mainsail by moving draft forward). The tension on your jib/genoa halyard at the FF furler foil should in my experience be quite tight (used truckers hithes to tension the foil halyard. There will be some sag in the foil so try to get rid of the sag in the sail luff. You will be rewarded with the boat sailing better upwind, the furler working smoothly like it never did before (very easy to furl/unfurl) and you will have the newfound ability to rake the mast forward when sailing downwind as much as the rig will allow. The rig raked forward on a run is beneficial and aids in headsail trim also. I cannot speak to the attachment points on the boat as I am not familiar with the late models - I use a 5:1 cascade (10:1) and I have been known to pull the adjuster on using both arms and one leg! (my fasteners are in shear at the chainplates). Be careful initially and watch the chainplates. Good Luck, Take Care, Have Fun, Go Sail GO In a message dated 6/6/2010 12:29:21 P.M. US Mountain Standard Time, seagray@embarqmail.com writes: Has anyone with a M17 with a CDI furler toyed with installing a backstay tensioner? I have my backstay tightened down as far as the turnbuckle will allow but notice that the headstay/furler looks a little limp. To compensate I tightened up the headstay but now I have very little rake, if any. I've seen recommended rakes as much a 12". I'm thinking that a backstay tensisoner might kill two birds with the same stone..... tighten the forestay and create some rake??? I'm thinking of using a pincher design using a 4 part purchase to tension a pair of blocks to ride down the split stays. Has anyone tried this? Are the attachements at the the deck for the split backstay strong enough to handle a backstay tensioner? Am I toying with danger that might damage any of the rest of the rigging?? Any advice is always welcome. Thanks, Joe M17 Seafrog #651 _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet!