<p>Corbett-</p>
<p>Thanks for the professorial guidance. </p>
<p>But this is not an LAC; it’s a message board where people who post their opinions also ocassionaly do work to help the discussion along. </p>
<p>It’s not “unrealistically difficult” to do what you suggest; it’s that many of us have other things we are doing in their lives that get in the way of trying to provide the formulae you suggest would be more helpful. The OP already did some heavy lifting to start this discussion. </p>
<p>If you have some interesting statistical evaluation to add to the discussion in the form of revised tables, feel free to provide them. If not, that’s OK . . . but no denigrating others for likewise declining.</p>
<p>Kei</p>