One independent test found the Wipe-Out Accelerator could cause light pitting. Plain Wipe-Out didn't.
I use Wipe-Out (either foam or Patch-Out) or Montana X-Treme. The X-Treme products are the most effective cleaners I've found that you can leave in the bore, based on what my bore-scope shows, but they ain't exactly vapor-free....
Now you tell me about Accelerator........
Been using it with Patch Out for a couple years now, and occasionally soaking a bore. I don't have a bore scope, but haven't noticed any pitting--but then again one of those barrels is pretty rough so it's tough to see if there is any pitting.....
And yes, the vapors in Montana Extreme are a bit much in the winter with the windows closed.......
Casey