RE: The Bow Turbo
Just please be wary of the fact that the cable slide rod you've fixed-mounted this thing to is not designed to accept the forces you're applying to it, now.
Basically, you have one or possibly two set screws pressing against the rod @ the riser and now you're applying "outward" forces of some pretty decent magnitudes against them, trying to pull the rod out towards your face and shoulder. This is true even with the device located in the so-called static position, although the force isn't going to be as great as it would be with the device slid toward the riser.
As far as the "increase speed, poundage and draw length" claims, those are all highly debatable, and not all are made by the maker.
The Bow Turbow is nothing more than a roller guard/guide, the same thing used in 2009 by Mathews (Reezen, Monster, Drenalin, Switchback), Bowtech (Admiral, Captain, Sentinel, Air Raid, Airborne), Diamond (Iceman, Marquis), but the difference is that the attachments are made with the intention of adding forces there. By adding another pair of pulleys, they increase mechanical advantage.