sorry to be so blunt pal......but if you's love him to bits,then i would not run him on the lamp......there will only be one outcome,and it won't be nice ,i think greys could go lamping no problem,but they would need to from a young age to learn,......i would not be so sure with an ex-racing greyhound ,if you are determined to work him in the feild,i would try daytime first...and you will see what he is like with chasing quarry and running around obsticles etc....hope it works out for you pal ....atb....