Let's picture what the HFZ would look like served against Kane. This is the High Forehand Z serve, that is, to his forehand.

Kane will of course try to short hop it, but it is an awkward position to try to smash it overhead which might cause Kane to take it in the back. If it has good length Kane will have to kill it from shoulder high at 39 feet which could prove difficult even for Kane.

One thing is for sure. Kane has not been tested with this serve over the course of the past 10 years.

It's worth it to at least explore this serve and give it a chance on the 2nd serve.

If and when Rocky finally heeds this advice (DB, DF exclusively) and experiments with the HFZ, I will report it here.