Sails are the most challenging and frustrating of the puzzles, cept fer nav. I think this challenge is what keeps mates playin em even beyond sublime. It is difficult for me to give tips on sails without showin pictures, but I'll do me best and request ye visit the
YPPedia Sailing Page for more examples.
Combos and speed are all that matters in sails. Clearin the platforms just gives ye a new board, really, so if ye can keep makin big combos on the board ye got, do it.
It really is best to build from the bottom, if ye can access it, leavin one piece open to be filled by a level before it. This creates a chain. Note that links of the chain do not necessarily need to be platforms, they can be stacks of unwanted pieces above and below platforms, too. Try to make big chains to achieve a double, triple, bingo, donkey, vegas... and more.
Use the spacebar to get the pieces down faster. The puzzle is set on time. The longer you take to complete a combo, you risk the chance of dropping on the DR.
Once ye have the sparklies in sails, ye can pause to breathe for quite a while without losin the sparklies, but I don't recommend it. Start working immediately on your next combination.
If ye mess up yer board horribly, like with a misflip at the top, it is better to booch it than abandon. Abandoning and retaking, as with all puzzles, creates a "punishment" period, where ye have blue sails/pump/brown hammer for about a minute