Hey Evan,

I'm the one that had to cancel out on that great trip you guys had last week. I'm leaving this upcoming Monday to go up there anyway and I've been using a product similar to this: http://www.cabelas.com/cabelas/en/te...con&hasJS=true
I bought mine about 3 years ago and they have really sharp hexagonal 1/4" screws that really, really grab on everything. Looks like they changed the spikes to tungsten carbide spikes and upped the price by $30 from what I paid.

Anyway, hope to see your images one of these days.

Marc