The Venom is much better than the ice buster, you do not have to cut the float material on the Venom and it is infinitely adjustable. You can do so many things with the Venom, check the videos.
I prefer the Ice Buster because you may be able to make the float neutral buoyant, but it will still have more resistance, because it has more volume and surface area. You can make a case that it is negligible, but for me the Busters work fine and you never know what is going to make a difference, especially with a tough bite.
Not sure if any of you have tried the easy bite bobbers, but I stumbled on them last year and now have them on all my ice rods. They are pricey for bobbers, but I know they have put fish on the ice that I wouldn’t have normally caught not to mention they are easy to use and work on all types of fish. web page