I probably owe a review on my 6'0" Bourton Fat Bullet... I've had it for about 6 weeks and we've had some waves in Sydney so it's been well tested.
Me, about 75kg and 185cm and <45 and >35 if that helps.
Paddling out - excellent. lots of float.
Paddling in - excellent, seems to act like a board with no rocker and stay low with very little resistance and lots of paddling acceleration. Best short board wave catcher I've been on.
Under 4 foot, loose and driving, not like a thruster (snappy), more like a skateboard with kryptonics (if you know what I'm mean - drivey). Good for cutbacks, tail drifts into pocket nicely, very fast when you drive it hard.
Over 4 foot, paddles in early like a gun, very solid feeling when you are riding high or mid face, very very quick down the line. Doesn't mind being steered down the face on a vertical takeoff - the nose shape and side fins really hold on when it's sketchy and hollow.
over 4 foot... got axed by a 6 footer on a late take off, as I shot out onto the flats the tail felt like it was cavitating... like not holding on and not finding a line for itself, precious second lost and lip smashed me before I could lay it into a bottom turn.
Found the board didn't lay on its rail on another bigger rail - stayed flat and I fell but it is 21 inches wide so just have to recalibrate myself!
On a really solid fast late 5 footer back-hand it flew along taking a high line but I just couldn't get it to let me carve a nice line down to the bottom so I could do some more vertical turns... I actually think I wouldn't have been quick enough to make the wave at all on a thruster... but I really just wanted to do a big turn off the top and bottom and couldn't get out of trim!! Maybe that's a quad thing?
Positives far outweigh negatives to make it the best board I've owned and i highly recommend it as a thruster alternative for the non-aerial generation.