@pasquales I have the skybrid 85 as my lightwind board. I am 90 kg and it's a floater I use it up to 15 knots or if the wind is really light on inside and big waves making getting out tricky.
a sinker for me is a board that sinks past your waist when no wind.
@ianinca I think all of those board would get going quicker than your Naish. the size depends on your main style.
I'd say the 5'8 is a bit long for a small board, the 5'3 be better getting going in chop and will be bit thinner.
what brand you looking at?
im also tempted to get the Skybrid 5'4 55L as a travel board as my custom is really light but also fragile and when I travel I take kite & surf kit as well so only 1 wing board