This is just silly and you're fooling yourself into thinking you did yourself a favor. Booster straps are not simply for tightening your boots or making them stiffer. The whole point of a booster strap is to provide certain rebound and elastic properties that allow for a more communicative relationship within the amount of power transfer of the flex of your boots.
The tru straps are also completely different than a booster for the same reason, tru straps are strictly for giving you a tighter feel as they are static.
One thing I also notice quite frequently is skiers buying the world cup booster strap simply because they believe that the stiffest one is going to get them the best performance. Even myself at 175lbs, I would only ever run the expert level booster strap as it has 3 elastic bands (providing those rebound properties as mentioned above) where as the world cup has 2 of the 3 bands sewn together, ultimately providing a more static feel unless you're 200+ lbs.