For most people, the TVP isn't a good choice. One, it's REALLY expensive. Secondly, it's very advanced. Well there's no doubt it's worth the money once your vert plateaus, way too many people buy it when they don't need to. 90% of people seeking to increase their vert are FAR from for reaching max gains from standard, conventional exercises like squatting, deadlifting, etc follow by a good power program....the TVP is more so when you're getting a really high vert(into the 30's standing, over 40" running) and really need some VERY specific exercises, or when your strength levels are through the roof and your vert isn't very high. Until you hit 37"+ running, it's not really worth the cash, and by then you should know enough about working out by reading around to make your own programs.