Heres how I made mine :-
The retaining strap allows the hood to be fitted and tensioned to a better effect than the stock latch - this also provides greater security if you land awkwardly and prevents the hood from being dislodged sideways.
to start you will need a stainless ratchet strap mechanism - you can get them in pairs from here (they arent cheap - but neither is your pride and joy as it takes water on - or your tricky hood sinking
http://www.topsandstrops.com/acatalog/Lightweight_Range.html
1. Remove the stock latch from the hull and hood.
2. I made a small blanking plate for the hood to cover the OEM holes up and make it look neater.
3. You will then need a method to attach the ratchet to the hull. I fabricated a plate up to pick up on the OEM holes(allowing me to revert to original set up if i want in future)
A. This was made from 10mm thick ally as i needed to clear my front foothole.
B. The block measures 50mm x 40mm - using a pencil transfer the holes from the OEM backing plate onto the block.
C. Drill 4 x 5.1mm holes for the bolts - counterbore these for the allen bolt heads.
D. place the block in place on the ski - line up the ratchet mechanism and mark through the 6mm hole with a pencil.
E. Drill out the hole 5mm, turn the block over and CSK to accept a 6mm bolt, then tap out a 6mm thread. Screw the CSK bolt in tight (i also used studlock)
F. Turn block back over and refit to the hull using 5mm cap heads(dont forget to fit backing plate before nuts inside the hull)
4.A. Cut the strap off the ratchet mechanism
B. lay it on your hood , mark out a Y shape ( this will depend on how far apart your fwd attachment bolts are)
C. mark the position with a felt pen (I then melted the ends with a blow torch to prevent them fraying) and have the two straps sewn together.
5. Fold the fwd ends back on themselves and have them stitched, then using a hot soldering iron "drill" holes fro the fwd bolts.
Then fasten the ratchet to the block made earlier with a 6mm stiff nut and penny washer.
The whole installation in place - The pole rope looks weedy , but it is actually kevlar reinforced 2000lbb breaking strain.
Im going to cover the ratchet somehow - it will probably involve hydroturf and velcro. Watch this space