CT, Would never hurt to throw them out, biggest thing is turtles and sharks love them, We turn our spanner gear over every 45mins to an hour as they can be brutal to your gear.
Have never tried getting the spanners in normal pots i only use the trays so the pots would definately be better long term. Just do your arm exercises to get ready to pull them. Its ok with a couple but when its 40m + and 12-16 pots it hurts very quickly.
Cheers Lee