Sounds like a good call on the delta.
25# huh, I thought I carried alot! You must be a biggun' too.
The sequoia was in the running also, but the Ergo' is completely modular, meaning you damage/wear out your left leg loop, you replace just your left leg loop.
You'll have to post some pictures of your setup when you get it set. I've never climbed on a bridge but I want go that way. Tired of fighting the central attachment with my Variobelt while limbwalking.