Fingers crossed for you PB.
Kaz, I agree it is a very fine line. I think business like and to the point is good. They want to read fast and to be able to extract the important information from your letter asap and then get to the book. I am sure many people here have watched Piers Blofield (spelling?) on you tube showing how he deals with his submissions but if you haven’t it’s worth a look if only to see the speed with which he makes a decision.