Futures Fin System - Advice Please

Hi All
My brother in law and I were out at the weekend in Putts & Woolacombe, when we got out, he has snapped off his centre fin.
He's a beginner, so still riding white water, he's about 5'10 and fairly slim build. He's got a 7'10x22x3 mini-mal.
I was just wondering if anyone had any advice on the following:
1. Where's a good place to get Futures Fins from (Seabase looked quite good)
2. What size/ shape/ model no. do you think he should get?
Cheers in advance
Sinista
My brother in law and I were out at the weekend in Putts & Woolacombe, when we got out, he has snapped off his centre fin.
He's a beginner, so still riding white water, he's about 5'10 and fairly slim build. He's got a 7'10x22x3 mini-mal.
I was just wondering if anyone had any advice on the following:
1. Where's a good place to get Futures Fins from (Seabase looked quite good)
2. What size/ shape/ model no. do you think he should get?
Cheers in advance
Sinista