spizzlepop,
My interpretation of your post was pretty much what you just described.
In 2006, the CBA was changed in a number of ways. In my opinion, until we see how the clubs use those changes, this is a huge guess for anyone. If the coaches are basing their comments on what occured before, my feeling is past experience may not be fully reliable.
My sense is the CBA changes lessens leverage for many players.
All players who are drafted must be signed by 8/15 or they cannot be signed. If the player is not signed, and he is a high round pick, the team that was unable to sign him gets that pick again the next June draft.
Bottom line, my sense is that most clubs are not going to be leveraged over that extra year of college if they get the pick back next year, absent either a terrific individual talent, a need, or a draft class that is short on talent.
After the 5th round or so, there aren't very many situations where the player has more leverage on slot money based on having two years of school as opposed to one. Certainly he will have more leverage than a senior sign, but everyone does.
I think your son, when he gets to age 21 and has 2 more years of college eligibility left is a lot like a JC guy. I don't think he has distinctly any more or less leverage than that type of player, other than he will be one year older. In JC situations I have seen reported, I think transfer to a 4 year program did, in the past, get them some additional dollars. I don't have anywhere near enough knowledge to guess at what the 2006 CBA changes will mean in 2 years when a player like your son may/will have 2 years of eligibility left. For the most part, more cards are with the clubs than before, so we need to see how they play them to know whether the coaches are right or wrong. I just don't feel comfortable that past experience is fully helpful for you other than the JC analogy.