Completely forgot to ask, psicrystals and feats, how are we treating that in this game?
Let's say for the time being that the psicrystal begins play with Alertness (as described in its monster entry), but that after creation it can be retrained for something else. Now, the psicrystal class feature/advancement notes that its owner gains the Alertness feat and this won't change -- just the psicrystal wouldn't benefit from it anymore.
Choosing feats for a psicrystal as it advances though...
...Let's go ahead and extend this to all NPC companions, animals, and so on -- the current generation will be grandfathered in without changes, so this affects future familiars, companions, summons, and so forth -- my preference is for PHB feats, or monster (MM) feats to take priority. Followed by that, feats from the source the creature or companion is
derived from (Incarnum for soul-things, XPH for psi-things, etc.).
This will use the same basic rules and guidelines as retraining -- one
kind of change at a time (change skills OR feats OR class features), and typically during level advancement. So for the case of the psicrystal, the most obvious time for this to happen would be when
your PC levels up.
...But getting back to choosing feats as the familiar/companion advances...
The best rule I can think to apply in this case is based on Handle Animal. If you wish to forgo the immediate acquisition of a feat for your companion -- say you hit 3rd level and you want to give you psicrystal a feat that doesn't suck, or that appears in a source that's above and beyond the PHB/MM/XPH/CPsi -- you can take a week to teach it... I don't know, something bizarre out of
Tome of Battle. (If it qualifies, right?)
Does all of this make sense?
Now one of the things that I really,
really need to point out is that outside of the immediate dungeon setting -- I don't really care about the passage of time. You guys can totally be in control of that.
Hyper time dilation or whatever.
All I want to see is someone say, "I'm going to take a week to train my psicrystal how to lead a charge, White Raven-style! Who's with me?"
And then, barring any bizarre action necessary to do so -- you can then go right ahead with it.
I'm not necessarily trying to reconcile everyone's personal time-line or anything. You just have to be willing to break down the actions into their component parts and describe to me what's going on. You can get all timey-wimey if you have to. This is the Internet. Anything is possible.
--Dither