Unless I know better, I seldom order pastrami sandwiches anymore because it's just a losing battle finding a good one. On a recent trip to Manhattan, I made the trek to the Lower East Side and ate at Katz's. At the suggestion of Nina W (and where has she been lately?), I first stopped at Russ & Daughters and bought some chubs. The selection of appetizers at this place is terrific and the prices reasonable.
I took my chubbs down to Katz's and followed the drill: $1 bill in hand, step up to the counter man and say, "Pastrami on rye, fatty please, with an order of pickles." Naturally I got a sample, followed by a hand sliced sandwich.
I took my sandwich to a table, opened my parcel of chubs, and feasted. The pastrami was moist and was well complemented by the mustard and rye bread. Delish!
As an aside, I peeked into Yonah Schimmel's and wasn't the least bit impressed.