vertical increaser machines?

Query by Did I Do Dat?: vertical increaser machines?
To any person who has attempted any “vertical increaser” machines, are any worth any great? would you recommend it?

I am not saying naturally improve your vertical by doing workouts, I mean a vertical machine like “SKLZ Chrome Hopz” for example.
“vertical increaser machine” – Fail.

Very best answer:

Answer by I have defaulted
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