Help with C4 Mustang

i'm trying to buy these fins but it's a hard task in Portugal and Spain i guess i'll have to buy them from Italy but still not easy....

I'm asking for your help to pick the fins stiffness.
my curent fins are the Gara 2000 and i fins them soft specialy whem i try to put more power on the finning. i'm 1,85m, 100kg and dive with a 5mm suit with 8 kg balast. i hunt mostly between 10 and 18 meter but i'm hopping to get a litle more deep(but nothing more then 30 meters in the near future).

Can somebody compare the gara 2000 with the c4 25 and 30 stiffness. I know they're diferent class fins...

i got this great advice from panosb:
[ame="http://forums.deeperblue.net/showpost.php?p=597043&postcount=64"]DeeperBlue Forums - View Single Post - C4 Mustangs[/ame]

thanks for your help.

By the way, any on-line store that's selling the fins???

anyone....???

for others that might have the same questions, i got what i needed in the C4 Mustang thread:
[ame="http://forums.deeperblue.net/showthread.php?&p=598573#post598573"]C4 Mustangs - Page 5[/ame]
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