Possible bug with Sentinel Radiation Armor power "Proton Therapy"

[WumpusRat]

I was doing some testing with a Sentinel build today, and ran into a bug with one of the powers in the set, Proton Therapy.

The power has a 50s base recharge, and while recharge IOs slotted into the power function normally in reducing its recharge time, GLOBAL recharge bonuses don't seem to affect it properly.

For instance, with 3 50th level recharge IOs in the power, it has a 99% recharge rate. It recharges in just over 25 seconds, which is normal.

With 100% global recharge, the recharge rate only went down to 23 seconds. Both Mids and the game server list the recharge this way. With 199% recharge, it should be recharging in just under 17 seconds.

I added Hasten, which brought my global recharge up to 170%, and the same 99% recharge in the power, and the power's recharge dropped to 17s, when it should be closer to 14s. 

 

Is there something in the power (or the Rad Armor powerset as a whole) that somehow affects how global recharge affects this power? And if so, is it intentional?