A bunch of unverifiable speculation. Some may be true and some probably isn't. However, anyone trying to decide on the best method of play should be using facts, not speculation. The facts are:

1) Singer continues to promote playing negative return machines.
2) Singer promotes special plays that reduce the expected return.
3) Advantage play does NOT require playing long hours, it simply means playing with an advantage. IOW, one could play a progression with win goals and still be considered an advantage player as long as they simply do it on positive return machines.

The net is nothing that Bob stated is really relevant to the discussion of Singer. He promotes a losing approach to gambling. That is the bottom line.