Ive never fed a dog before going lamping, and my thought would be you need a good kick op the arse if you did. Why single out lamping, how many coursing lads feed their dogs before a match, unless purposely 'stopping' them. I had a friend whose dog was running like shit, eventually found out his mother thought it was cruel not to feed it before going out, so she was, stopped her feeding it, and it got back to its best.
Apart from running lurchers, Ive worked whippets, salukis and deerhounds. Deerhounds have always been noted for the problem of bloat/torsion, as this usually effects deep ch