The Y stakes, like MSR Groundhogs, seem to provide the best holding power. Found an online review of several stakes and holding power, but cannot find that review now.

Here is a copy of the Groundhog for 99 cents:

http://goinggear.com/index.php?main_...products_id=26

I use these and have found them to be excellent stakes. Two weigh just over an ounce.