Genesis 1200 Spearfishing newbe questions

[Zebra 1]

Tried out my new Genesis in the LDS pool. I'm very pleased to say the least.
Will be using this to spearfish oil platforms in the Gulf of Mexico. Any advice would be greatly appreciated, I know most of the biggies, buoyancy control, trigger locked when not in use, don't go where you can't swim back (while towing a scooter). Does anyone shoot while on the trigger?

 

[BoltSnap]

This reminds me of James Bond's movie: "Thunderball"

 

[Superlyte27]

I use the Genesis 600 for spearfishing. It's basically floated slightly above me. Just barely positively buoyant while I'm shooting. I use it to move from area to area after I've cleared the reef of fish. Also, sometimes I surface really far from the boat with a full bag, the 600 makes it back to the boat pretty fast.