Mako spearguns really have their head up their ass to come up with this money maker. Do not use this contraption. Orca put a clause in the product description on their website warning of the dangers of this strap after I criticized it on planet two years ago. Mako followed suit with this piece of wisdom.
QuoteNOTE: Although this product does have a quick release buckle, this product is obviously to be used when hunting small game only.
What happens when you're at the end of your breath hold in 60', shoot a "small" fish and your shaft gets stuck in the bottom. No quick release is quick enough as far as I'm concerned.