It's kinda difficult to practice with a speargun. I found this neat little dive shop (actually not that small) about 5 minutes walk from my office. Now get this - they've got a 15m dive tank on the premises!!
Even better - After a little weedling I can now go there anytime I want to get wet. This should do wonders for bottom time / stamina.
I still have to convince them about my speargun though

Would be kinda bummer to shoot out one of the glass panes and go floating out with it.
Is there anyone else from South Africa on these forums ?
Regards,
RC