[Menarker]

How about no? Double damage is THE major key feature of Crits. We barely see anyone (especially the foes) use buffs moves due to all the ganging up we do, with my Mollesk only being the exception because his stats are so darn high to start with and thus can survive in the first place. Taking the main reason why crit is useful away from other pokemons seem WAY WAY WAY too much to me. Also, limiting the higher levels of crit to only speed types? Also WAY too much.

The +2 to crit rate is so that slower pokemons who are more inclined to use crit moves (the ones I kept on saying are crit specialists) have a chance of equaling speed types who don't have the overwhelming advantage. A speed type who happens to have a crit move or having the overwhelming speed advantage would still has the advantage.

With the most recent system I proposed, the speed type still has the advantage in terms of how often they can crit, but it doesn't take away from the other pokemons whom were supposed to be encouraged to crit in the first place due to the abilities or moves they gain.

In fact, let me make a chart again with the one I was saying we should do the test on:

"Crit users"
Start at 1
Assume losing the speed clash
Crit move +2
Item +1
End result: 4

"Speed types"
Start at 1
Speed Boost victory most of the time: Assume +2
Item: +1
Assuming no crit move.
End Result: 4

It's balanced and equal (since choosing to equip the item is easy enough and no randomness there).

Now, if the crit specialist wins the speed boost (presumably against a slow foe), then he gets to +5. If the speed user happens to have a crit move, that's +5. If the speed pokemon happens to have overwhelming advantage in the speed clash, that's +6.

There is more or less a sort of balance which still rewards speed types (rewards both really), is simpler, and effective.

Otherwise, maybe the damage should be reduced, so you need to have a massive crit to do 2.0x more damage, otherwise, it only does 1.5x more damage on a standard crit.

So basically, either keep things the way I proposed it recently...

or

Crit moves only have +1, but standard crits only does 1.5x more damage and have that buff ignore thing, while massive crits like improved crit moves have the 2.0x damage and buff ignore.