In that case I feel you should clarify what you want to talk about.
1. Did Custer do anything wrong? I think most here say yes. Hard to argue different, if the result was annihilation of Custer's unit.
2. Did Custer make the right decisions, based on the information available to him at the time? That one touches on point 1, but is different enough to get it's own number.
3. Were Custers actions/decisions inevitable based on the socio/political and doctrinal circumstances in the army at that time? It seems to me, you're arguing a bit for this one, based on the fact that it was apparently expected to attack immediately.
4. something else?
1) Yes, I think Custer did some things wrong, or at least did some things I don't understand. What I'm arguing is that it's not fair to start with the end result (disaster) and use hindsight to conclude he must have been incompetent and have made horrible decisions. The decisions should be evaluated based on what he knew at the time and other factors, like the standard cavalry operating procedures in the Indian Wars.
2) see above
3) I'm arguing that they were contributing factors along with others. I'm arguing that this was a complicated battle with difficult decisions. I'm arguing with the "Little Big Man" movie portrayal of Custer as a bumbling fool.
My suggestion was that we start at the divide and work our way forwards discussing each of the major decision points. The idea was to look at what Custer knew at the time, talk about what why he made the decision he made, and express our opinions on whether the decision was justified based on what he knew.
I said before that I'm most interested in figuring out what happened and why, not in laying blame, though that can be interesting, too.
I started with the first decision, which I thought was uncontroversial: that Custer was forced to make a rapid advance on the village after his presence had been discovered by the enemy. Others have disagreed with that and expressed their arguments. I'm not convinced but I'm going to keep an open mind on it and think about it some more.
I think we've covered the "recon" issue pretty well so if there's interest in continuing, I'll go ahead with the second major decision point.