23zx would likely be the sl comparison.
Tige has some great interiors and the GO system is great but I'd demo one either boarding or surfing if it was me.
Our r23 surfed great but that hull is the old z3 hull and it's been proven over and over. I have heard mixed on the zx hulls. the SL was CRAZY quiet compared to our r23 and cous said it was quite a bit less than the 400 in the 23zx.
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