My vote is to get into the down-wind boards, although 24" is certainly on the thin side. I like the look of the Bill Foote boards. Here are some photos I pinched from the Zone.
The first two are 14' and super light weight - from memory under 9 kg and full carbon and I think 25" wide - I'll see if I can find the weight reference and confirm.
The next three are a 15' board - I think 27" wide
Love the simple clean shape, notice the first one doesn't even have a deck grip to keep it light, just wax.