Does anyone have any feed back on the C3 Slingshots? Positives and negatives. Thinking about buying 2 for this season. Want to use them with Isonic 55 and 44. Any opinions would be appreciated! Also alternatives that ARE avaliable to buy.

Being such a busy person I decided start getting some gear organised for my upcoming trip, going through my fins i couldn't get over the weight difference so decided to check the weights of some fins which were similar in size;
Weights:

* Ka 23cm assy____________350g g10
*C3 23cm Slingshot_______500g g10
*Deboichet UW 24cm______200g CarBF
*Lessacher 25cm SPDuo____300g CarbF
*Tectonics Talon 25cm_____300G g10

Got a shock at the weight of the 23cm slingshot I wonder how heavy the 25cm slingshot is ?