Stacks are out dated, plus limit the item from never seeing pro play. I don't know what numbers it needs but its clear movment speed should be part of it, it should be part of all jungle items excluding warrior as most AD caster types that play with warrior ( Panth Lee sin) already have easy ways or ranged ways into combat.
A 5% moment speed with 
and upgraded to 8% on 
seems pretty good to me.
Just see 
etc gaining additional moment speed from will end the game early.
Most champs get 
and have some speed boost ability.
Note: I doubt it'll ever happen, there are too many ppl whining abt being op and with 
one already gets that moment speed boost.
The problem with this is that it'd have to be almost completely reworked. The reason devo isn't taken in pro play is because of the champs more than the item itself, although they both contribute pretty equally. You said it yourself that devo champs are solo queue heros and you're not at all wrong. They're easy enough to shut down with an early game team comp and solid disengage. Throw in the fact that they need that farm even more and you've got a recipe for disaster in any sort of organized play - not just pros. I really don't think that tacking on movement speed would help and reducing the number of stacks it needs would make it utterly broken.
If anything gets changed about it, it'll be a nerf. Although that won't happen. At least I hope it won't. That thing is already risky business.
