Welcome Aboard Lily it,
In case you can't find those posts, here are some of the recent innovative ideas and solutions to the loose Ama bungees - aka A.B.D. Ama Bounce Dance
Though Hobie switched (2010-2012) from using 1/4" to 5/16th's bungee for the Amas, I've found that a single 5/16th's bungee is still not strong enough to hold the Amas tight up against the Akas when going through waves or chop. To my knowledge, there's never been a reported case of either type actually breaking. For me, it was more about keeping them up and eliminating the annoying knocking sounds
I've done 4 of my system so far on friends TI's and everyone likes them. On the most recent one I added a short web "pull tab" on the inside coil to help pull the second bungee over the Aka post.
Don't know, but perhaps we'll see some variation of these ideas on the 2013 boats
Good luck. viewtopic.php?f=69&t=42732&p=178504#p178504viewtopic.php?f=69&t=40730