somebody just gave me a pair of Churchill swim fins - useable but i can see the straps that go behind the heel are cracking. i'd like to repair them before they bust - anybody have a good tip on how to do this? i saw some suggestions to use wetsuit glue and this guy is pitching something called Solareze Spongrez, fixing exactly the same problem:

http://solarez.com/uses/swimfins.html

anybody have any suggestions? thanks!