Just a quick question, I'm clearing out a load of old gear and I've got a couple of old 68/4500 tanks that are 5+ years out of test. I was going to give them away to a guy I know who's just getting started out and let him have them retested. Will there be any issue getting tanks that are that long out of test retested? Don't want to waste the guy's time if they're better off going in the bin.