Ah, this is great, many thanks, fantastic site, Xtol is listed with times for pushing Delta 100 to 400, so maybe I'll try that this weekend. I had wanted to do this today but I'll 'til tomorrow when I can get in to B&H to pick som eup.

Thanks again...suddenly feeling less stressed about this.....but, man, I guess I otta keep beter stocks of various films on hand, eh?