Mobility Boots Small Change

So current mobility boots give +105 MS while out of combat and +25 while in combat (5sec to break combat). Would it break mobility boots if you keep values as they are. Then after 2.5sec of being out of combat, the movement speed its gives slowly increases over the remaining 2.5sec from 25 to the 105? Maybe even increase the price a bit to compensate. (mobility boots are already in a good spot) Thoughts?