I often think of having a different set up on my yacht.

The sails are 8oz Dacron - very heavy I believe.
I see boats over taking us in light winds of <10 knots and I know they have lighter sails that can fill easier in light winds.
Especially when wind is light and aft the beam, mine keep sagging and the boom starts clanging away as the swell hits. I set up a preventer to control the boom, but this alone doesn't help fill the sail. I've tried sailing just with the genoa, but not much improvement.
I'm thinking of a much lighter Gennaker or even another genoa on a furler in front of the existing headsail.

Currently my 14t yacht with heavy sails doesn't like light air!

I'm interested in your opinions.

Cheers!