The texel formula for spinnakers works as follows, <br>boats up to 16 ft length, max spin 18sqm <br>boats 16 - 18 ft length, max spin 21 sq m <br>boats 18 - 20 ft length, max spin 25 sq m <br> <br>f16hp will fall into the 2nd catagory so we can set spin up to 21 sq m without any change to handicap, we might as well do this, we currently sheet the spin just behind the shroud with a17.5 sqm spin which is fixed 7.35 m above mast footI dont think that the sheet posn would change much if the draw height went up by a metre.<br><br>