I am really curious if anyone has used both of these 2 machines for any length of time?

What I am looking for is a comparison between the hit force of these 2 machines.
The dragon fly has a set shaft with no slider and is around 3.6.
Compared to a Halo 3.6 with a slider which of these 2 machines hit harder with nobs turned tight for no give?

I am trying to see if the Dragonfly is just naturally softer by design.... any extra info would be greatly appreciated... thank you.