I am not sure about the science of card counting but I am very familier with how the comp system works. The reason I think that BJ is a hard game to earn comps with is that the games theoretical win rate for the casino is so low. For example since I began playing BJ I started with $10 flat bets and a few days after each session would ask how I had been rated. On one occasion I was told I had been rated at $10 per hand for 1 & 3/4 hours with a theo of $9.00. Figuring that the casino is using an average of 60 hands an hour to rate play I must have, in the casinos eyes, played a little over 100 hands X $10 for about $1000 in action. Using these figures my theoretical loss rate seems to have been slightly less than 1%. If the casino is giving back 40% of theo in comps then I guess I would have earned $4 in comp value, but the casino does not write comps for less than $10. I have recieved two comps for BJ play, the first while playing $10 a hand over the course of a one night hotel stay, The first day I was rated at 2 & 3/4 hrs at $10 per hand, the second day, $30 per hand for 3/4 hr. The only reason I can figure for the $30 rating is that the pitboss needed more action then the $10 bets I was really making to justify the $10 comp I was issued. The second comp I was issued happened the same way. By this time I was playing $15 a hand and was rated at $25 a hand for 1 & 3/4 hrs to justify a $15 comp. These two occasions, when asking for comps, have been the only sessions that my play has been padded by the pitboss. As far as I can tell it would take $50 or greater flat bets to generate nice comps and I dont think I could ever be comfortable with this kind of action.