It is still in planning phase on my side. I'm looking at having a block at 40 % of the boom as others describe. However, I'm out of (boat) money for the moment so it'll probably by next season at the earliest. By the way, the A-cat setup will be in the way of doublehanded sailing and not having a cleat is bad news for spinnaker sailing. Personally I'm finding that the rear setup is pretty acceptable when singlehanding and that the boom setup has other downsides when doublehanding which makes application less appealing that on the A-cat. Alsp the way I run my spi lines will directly conflict with any trampoline based mainsheet block.

An A-cat sailor once told me that when the switched from rear sheeting to centre sheeting that doing the wildthing on downwind legs was much improved. Sadly on an F16 this is not an important consideration as the addition of the spinnaker makes the F16 behave totally different on the downwind leg. Doing the wildthing is almost near done on a F16.

The two boats are really diverging both in design and the fitting out. The addition of the spinnaker really does change the total concept of the boat.

Wouter