Just bought a set of AM1 Spectrums. These Fins seems great value, just the measurements are bit strange.

Centerfin:
Base 111mm and Depth ~115mm
=> should have 110mm and 112mm //

Sidefins:
Base 112mm and Depth ~115mm
=> should have 116 mm and 115mm

The angel of the centerfin is slightly different like it should be, couldnt measure the angle though. Does someone know whats the deal with that? Are these the new shapes for 2013 and they didnt update the homepage? They look finetuned as hell, but i dont know if keep or send back!

No one out there with these fins? Comparing them to G5s the Base is approx 2mm longer. Fins look pretty dope though.

Yep they are suppose to be mate. if you read the blog on Shapers it work'll explain it. Less drag from the centre and gives you more turn. I use the am2 excellent Fins. I sometimes change the centre out and put a 3 in there,super fun on the size difference I would just call them up,they are heaps easy to deal with

Chrispy, thx for the feedback. How much do you weigh? Guess to call would be to expensive, i tried to email them but the infos@shapersfins.com is dead. Finally I sent them back waiting for stealth am1 which should have right geometries, tells distributor.