Hi mate
At the moment he's using about 8 dive tanks - 2 of which are 300bar and we're doing a 3 stage fill to get the most out of them! He's getting a new air system from Trev at Hpac soon so won't be for much longer.
If you could bring down a tank, that would be great mate. No need to book in, just let me know if you're BYO or if you need any blaze.
Regards
Ains