Hi, Chris here. I have been using a long board for years, in 8 knots you can generate apparent wind + using the wave you can get allot of power. In 10 knots you can get the feeling of being overpowered at times with a 12m kite. This is better than sinking up to your arse on a twin tip any day. Also on a good minimal in light winds you get more of a surf feeling as you are using the board more than using the kite on the waves. Just don't ride the wave under your kite.
I was learning to kite on a surfboard back in 2000 and wondered why more people where not using surfboards, now using surfboards is very "in"
I don't think using malls will ever be "in" but it can be allot of fun.
And don't use a leash unless you want a mall flicking towards your head after a nose dive or wipe out.