never been and wouldnt go lamping without a red filter find dogs pick the eye up alot better imo,slip in the red then white for the run then straight back on the red but each to there own
had a video here of a very good whippet from about 15 year ago one of my fathers mates dog killing 3 out 3 s from good lay ons round east anglia way, good dog but knocked up to easy
if you think hes ready this is the time to give him onre a easier havest one to boost his confidence, and if he does well get him real fit then find a couple for him november time, but you will see the differnce all the best with him
go for just one i say imo, if one does a good thing yeah the other will, but the same as a bad thing the other will copy, i just think you can put alot more ito the one best of luck what ever you do