Billekrub, if you're asking me about my 10'4" surf custom I'll try and reply as i've only surfed the Nalu a little bit...
I didn't want to hijack freshiesup's post...

My Sunova 10'4" x 28.5" x 140L
Naish Nalu LE 10' x 28.5" x 130L
Rocker: much more nose rocker in the Nalu, similar through rear
Shape: wider 'bat' tail on Nalu, much more pulled in nose on Nalu, although the custom is much more pulled than say a Sunova Style.
Rails: Hard edges on both - much lower profile on the Nalu in comparison throughout the whole length of the board. Rails on rear 2ft very similar.
Deck: flat deck on the Sunova makes for a thicker rail in the middle, where as the Naish has a much more rolled deck to allow for thinner rails. Sunova is 4.1" in the centre and Naish 4" but the rail thickness difference at board midpoint would be over 1".
Volume: Nalu is on paper 130L and my Sunova 140L but it feels a bigger difference than that in the water. As in either the Nalu is actually under 130L or my Sunova is over 140L.
Glide - much more glide on the Sunova due to the flatter overall rocker and greater volume. FYI The Naish still has much more glide than my JL WW 8'9"
Speed: Similar, maybe the Naish is a bit faster
Turning: Naish is looser on a wave (although the fin set up was very different between the boards) and I have caught the nose on the Sunova a few times, on the Naish that isn't going to happen.
It also felt like the Naish can handle being in the more critical parts of the wave, whilst the Sunova prefers a fatter wave.
Naish is much lighter in weight, which i'm sure helps in feel / performance. Certainly not as light as my JL WW Carbon though.
Hopefully this covers what you have asked mate.