Rickyroughneck wrote:One thing that isn't mentioned; could your board be overfinned?
Too much fin makes the board resist turning, so that it always faces the direction of travel. If you can, try downsizing the fins to see if it helps. I've never ridden a quad, but maybe you could take the trailer fins out just for one surf just to see if it loosens up.
Was out surfing over Christmas on my 'new' (7ft4) board - not so new, but relatively unused for several months because of a knee injury and an overseas trip. Was catching waves but struggling to make the turns, ending up heading toward the beach and not surfing the face. I also noticed it was harder to paddle at an angle to the wave pre-pop up.
Being a new board was wondering if it was my skill levels, or I needed to surf it differently to my longboard (9ft1) or it needed bigger waves or it was just not a good board (the last was unlikely because its from a very respected shaper).
Spotted Ricky's comment and thought 'well, why not give it a go'. I had a thruster set up with fairly large fins (the fins are between M5 and M7 FCS), which are recommended for my weight category but were bought without 'research' after I broke one of my other fins and needed something straight away. The only smaller fins I had handy were my longboard sidebites - tiny 3inch things - so I swapped the side fins out and left the centre fin. So like a 2+1 set up with a pretty smaller centre fin.
Well, perhaps it was the waves but probably it was the fins - the board was SO much easier to surf, catching waves and turning was simple and I dont think I lost any speed. Able to make the face and had some really long rides.
So I now feel pretty stupid that I didnt think of the fins at all when struggling - big thanks to Ricky
And I guess am now in the 'what fins should I really be using' zone of uncertainty (I mean, a thruster with a 2+1 set up?? On the other hand, its still a pretty big board so why not? Or do I go for small M5's all around, or leave it as is or...). I'll probably leave as is for now but will think about it.
Anyway, for Andy - I know you have experimented with several fin combos. But, keep the fins in mind - see whether your smallest fins help turning - or maybe you need the larger fins for more speed. Or a combo of a centre fin from one set and side fins from another. Also keep in mind the sweep (the degree to which the tip extends beyond the fin’s base) Fins with a large sweep (or a more rigid fin) have more drive and stability but less turning ability (and vice versa).
A quad is harder to turn anyway and partly this is because there is more fin area (because there are 4 fins), so more drive (speed) but you are fighting the fins when turning.
And to answer your other question (in another thread) about why a quad is easier to paddle - basically, the centre fin creates drag. With a quad, no centre fin, less drag and faster board. The downside is that its harder to turn - thrusters have a central 'pivot' point (that centre fin). 'More drive from a quad, more pivot from a thruster'.