I'm quite new to surfing and decided to try my longboard with a single fin - rather than the 2+1 set up I normally have. Folk told me that as a beginner I won't notice too much difference. Hmmm....not so. Immediately the board felt looser and faster which was great but then I noticed something else which was I seemed to be falling off the board much more! Back to the 2+1 for more - need the wee stabalisers!!
So, I can see why people like to surf with single fins but I'm now not convinced they are for beginners.