Another spin off the CPS thread...
I've been looking for a strap for my 500mm f/4. Searching the forum I found referrals to the OP/TECH/POTN/CPS & the UPStrap for use with a 500mm lens. Of the two, I'm leaning towards the UPStrap because I tote over the shoulder (as opposed to around the neck) and it looks to be more suited for this use.
Any other suggestions I should consider?