Explain - or link to- the changes to /regen and strategies to cope?

I was somewhat disconnected from the game for something around 3 months due to RL etc..
As I come back in the last couple weeks, i seem to find some serious changes in the way my main toon, a Stalker NB/regen .. is able to use her /regen (as well as some of my other /regen toons), both in PVE and PVP, but most dramatically in PVP.

Maybe i'm missing something here, but I'm really familiar with this toon, and she is definitely not responding the way she used to..

I have been combing patch notes as well as forums, but cant seem to find an actual explanation/description of what the changes were. Apologies if this is already answered somewhere, I just cant seem to find it.
It would appear to me core of changes is that the Recharge Time for Reconstruction, Dull pain and Instant Healing has been extended a lot -up to 600/secs-10 min w/o hastens in the case of Instant Healing???- (which seems rather excessive, IMHO). I'm still figuring out what other changes were applied.

I dont want this thread to become a 'doom /regen waz nerfed' whine list.. I just would like to have more accurate information about the changes, that I cant find.

Also, I'd like to hear what strategies are people using to cope with these changes...

So, can anybody point me in the right direction, or am I barking up the wrong tree ?

EDIT:
Similar question posted in Stalker forum at:
http://boards.cityofheroes.com/showthread.php?t=187594