Reviewing Martin Love's Shockwave fins.
I purchased a few Shockwave fins so I could ride my JP Magic Wave 89L and JP Ultimate Wave 75L in both Thruster and Quad modes.
The Magic Wave comes stock as a thruster with a 19cm center and 10cm side fins, and the Ultimate Wave comes stock as a quad with 2 x 13.5cm center and 10cm side fins.
So for the Magic Wave I decided on getting 2 x 15cm's and the Ultimate I got a 17cm Shockwave. I am very impressed with the fins, I have used the Magic Wave in Quad mode at Sandy Point in DTL conditions and it felt grippy but fast allowing me to do confident carves for my bottom turns. Fast, not draggy but with positive grip is how I would sum them up.
I also do a fair bit of sailing in our Port Philip bay, and when its 25knots+ I use my Ultimate 75L. In bump and jump cross on type conditions I prefer to be in thruster mode, so in this setup I use my Ultimate with a 17cm center. Again, same as above, the fin was fast but grippy, I was a little concerned it might spin out in the really bumpy stuff being so small, but I didn't experience any spin out, even in some fierce Ricketts point chop, the fin held true.
I have always been a big fan of the Maui Ultra Fins X-Wave shape since JP first started using them for there boards. So I was very interested in seeing how the Shockwaves performed as they have a slightly more swept back profile. Martin gave me some fins to demo, but after using them I was impressed and handed him some money

As you can see in the pics, they are a good compromise between upright and curvy. Note the JP stock fin I am comparing it to is a 19cm fin, the Shockwave is a 17cm.
For reference I am around 72kg's.
The Shockwave fin covers came in a lovely shade of hot pink and Martin said he personally sands back all the fins himself giving them a perfect finish. They do feel like a high quality product to me and I am very happy with them.