Ive tried everything. One of the benefits of owning a hockey shop ๐
TLDR: I prefer the FT4 Pro over the Hyperlite. However, I think the 100K is better than them both. I actually like the FT4 more than the FT4 Pro though as the slightly lower stiffness allows the boot to flex a little more.
The FT4 Pro and Hyperlite are very different.
FT4 Pro is very stiff, considerably stiffer than the Hyperlite all over.
More forward flex in the Hyperlite than the FT4 Pro.
FT4 Pro is significantly more responsive.
Weight is about the same with standard steel. With the Carbonlite option, the Hyperlite is significantly lighter. I did not like the Carbonlite though.
FT4 Pro foams seem better than the Hyperlite, I feel they actually mold better to your feet.
Hyperlite didn't lock me in as well as the FT4 Pro. I like the liner better on the FT4 Pro, I would feel my heel slip slightly on hard pushes in the Hyperlite. I assume the monoframe boot also contributes to better fit.
I didn't notice the fancy new outsole on the Hyperlite. Maybe because I used Flare instead of typical steel but the implied design of the new Hyperlite outsole was supposed to allow for more flexion and thus more grip. I felt nothing different or new.
I didn't like the Hyperlite tongue. The tongue insert was painful for me. No lacebite, just overall was not comfortable and when in a deep knee bend I felt like it was digging into my forefoot.
I also prefer the interchangeable tongue of the FT4 Pro.