It's kinda funny. Now I'm finding that the 600W bulbs aren't widely available, like the 400 and 1000's are . . . and are almost always the pricier. Seems I'd have read this important info on RIU somewhere. I mean, I took a LONG time changing over and did a lot of research here, yet had no idea hps bulbs are prone to defects and blowing, nor that I'd bought into the hardest to maintain/most expensive sized bulb.
I'll certainly be advising 400 or 1000 watt hps should anyone ask, like I did before I made this error in judgment.
So, any of you 600 watters care to share where a grower can get a decent bulb in a decent amount of time for a decent price?
Thanks everyone for your replies.