Thanks for asking Dan. This float will to behind the boat as long as you keep the nose up. We have had good feedback from scuba divers on these new HP floats, but they are still relatively new.
If you want a low pressure float and ones where you can making a towing harness...Very good quality and at a factory direct price..
Professional Inflatable Spearfishing Float | MAKO Spearguns
This type is the best kind of inflatable torpedo float that I have tried....The catch I found with some brands, is the need to create something of a towing harness, so a diver towing it from 100 or 200 feet deep, will have the force pulling on the torpedo, being directed about 1/3 of the way back from the front.....this keeps the torpedo running fast and flat, and prevents it from "Nose Diving", which is exactly what happens if you try to tie the line on to the loop at the front of the torpedo..... Now with a fish, that is diving, the front tow loop is great, because it causes the torpedo to nose dive, and the fish gets tired out faster.... As a diver towing one, you have a very different need than the spear fisherman using the torpedo to "tire out" a fish..
This would be a great place for Mako to make the "Scuba diver towing harness" for the torpedo, so that unsuspecting scuba divers don't end up working their newly bought torpedo float like they were a speared fish
Few divers even know that they need to rig something for optimal towing....Can you address this?
---------- Post added April 10th, 2015 at 12:59 PM ----------
George Irvine, Bill Mee and I began using this type of torpedo float back in the late nineties, for drift dives at 280 feet, using scooters, where we were exploring reefs for many miles amidst 3 to 4 mph currents. With all the current force between surface current speed, bottom water speed, traditional ball floats were almost impossible to drag, even with big Gavin scooters, and flag floats would instantly be pulled underwater for the duration of the dive....We needed a way for the dive boat to follow us for many miles....the ONLY solution was the torpedo float, and with cave line towing them, they were so slick in the water that they created very little extra work for the Gavin scooters in our multi mile explorations. Even in this deep scenario, these were towable by a diver even without a scooter, without much effort....but at this depth, with a distance mission, scooters were the only way to go
*** Another thought on these....and while I do NOT believe in diving with tanks too heavy to swim up without an inflated BC/wing....For the crowd that DOES dive so negative they need an emergency redundant buoyant float/smb in case of a wing failure...this torpedo with a polypro line could almost be used by a hard hat diver to haul themselves up..... [ Akimbo, I am kidding here
]
But flotation is close to 100 pounds of lift, so a scuba diver towing one of these, could hand over hand themselves , up to the surface, pretty much no matter how foolishly overweighted they had been able to get themselves!!!
No need to worry about the wing failure, and then the emergency float getting away leaving the heavy diver standing on the bottom !