NaturalBornCheater-
Plugged bowling balls are okay for use in all PBA Regional and Senior Tour events.
I also had a NightFlash, along with the original Red Alert. I remember the original outhooking everything I owned, but the carry was poor. The NightFlash, however, was an awesome ball. Outstanding carry, was great for me on broken-down conditions. It was just a little sooner (in terms of hook) than my Battle Zone Cannon, another great Brunswick dry-lane creation (and people -ignorantly- say that Brunswick makes only early-rolling equipment!)
As far as finding one...I can't help you there. In terms of newer equipment, try a Zone Classic. Carry is OUTSTANDING with that ball, and the overall motion of mine reminds me of my old NightFlash.
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Jeff Voght
PBA Eastern Region Member