Airhead Bungee Docking Lines
 

Does anyone have any experience with Bungee docking lines with the brand name of "Airhead"?

I've been using mine for 2 seasons on my 19'. I'm on the Winni River heading out to Winnisquam so I don't see a ton of wave action. They've held up nicely though and seem to take the strain off the dock and cleat.

Airhead bungee lines
 

Can't quote from long term but in the few time times used, seems to work well for my Wellcraft V20. When docked bow first, the natural rhythm of the wave action constantly strains the bowline putting jarring pressure on the line, cleat and chalk. The four foot length seems to work well with a relaxed stretch and return with each motion. It's not a heavy duty solution you want to leave unattended for extended periods because like any bungee it can wear and possibly snap. I use a regular 1/2 inch dock line for the stern for overnight and also a 1/2 inch spring loosely on the center cleat for back up.

Shockles
 

I've used 2 of these on my dock for the past 3 years and they are still doing a great job even with the amount of wind and wave action I get. A little pricey but worth it in my experience so far.

http://www.shockles.com/products/shockles.cfm