Quote
The deceleration received when climbing inclines is reduced by [10%]
However, I think I can say with certainty that nobody will use a module for a 10% reduction to the speed of the 'mech; it's not going to give enough bang for the buck in the slot. Not by a long shot.
However, if it were to bump a 'mechs "class" up to the next lightest level, then it could be incredibly useful.*
In other words if I want my Heavy class 'mech to handle hills as well as a Medium class 'mech (5 degree lighter starting angle), I could very easily see taking this module. This would also let Tiny 'mechs like the Locust and Spider do some incredible scaling - and I think that is more than fair to give those 'mechs something special.
Anyway, don't make this another dud like the Strikes were at launch. Make it impact our angle and make it worth the slot!
* For those that don't know the hill climb deceleration is based on if a 'mech is listed in it's XML as "Tiny, Small, Medium, Large, or Huge." Each starts 5 degrees sooner than the previous. Not every 'mech is what you'd think. A Dragon is a Medium and the Catapult is a Large. The Victor is a Huge and the Stalker is a Large. At least, last I checked, it changes and there's no indicator in-game for it.