Clair - Johno is like that with armbands too so I think I will try a ring and see how he goes.
I think for holidays, I'll try one of those suits as well as the ring because we've got a pool where we are staying so it would be a good opportunity to get him really confident in the water. I've found they have them in elc too and I've got a 20% off voucher so that makes that a bit cheaper.