I think I'll adopt this as well, if it comes up in my games, as I can see the listed penalties to skills and such that aren't really a handicap, but certainly could be during the time of adjustment. And your rational that they occur in a less-hurried environment is right on. Compensating for lack of near depth perception is about taking a little extra time to gather the dimensional clues.they'll start with a -4 penalty to everything listed on page 27 of the 3.5 DMG (and including melee attacks) with it evolving to a -2 penalty to Spot and melee attacks after at least 2 months. My rationale for dropping the penalty to the other skills is that they tend to be undertaken in a less hurried environment. Spot, as I mentioned above, is more or less spur of the moment.