Hull waxing

Hi, new to the catamaran scene and this forum. First question, does waxing the hulls really slow the cat down? If so how much? Is it better to wax if you're not hard core racing. I've heard it go both ways. Thanks for the help.
See other post in technical help section. Trying to keep to one thread.

--
Scott,
‘92 H18 w/SX wings
‘95 Hobie Funseeker 12 (Holder 12)
‘96/‘01/‘14 Hobie Waves
--