What is the highest temp obtainable in my model 2 w/ using the auber? 375°, in a bypassed unit. If you don't bypass the stock controller, you are limited to 250 (pass through).
What is the max temp swing w/ an auber? 1-2°
Can you save cook times and Temps on it for specific cooks? Yes! Up to 8 saved "recipes," which are just 8 separate saved programs (up to 6 individual settings in each program). You can also program "on the fly," during a smoke. Changed your mind, and want to run 235 instead of 225? No problem! Just change the program!
Would I have to replace the current temp probe or be able to run it down through to smoke hole on the top of the smoker? Are you glad you purchased your auber? Yes, you have to use the Auber temperature probe (unique plug, and calibrated for the Auber). While you can use a drop-in box temp probe from Auber, I highly recommend the permanent wall-mount probe. It is not that hard to install, and takes away any variables that you get from differing probe placement with the drop-in (which can be quite a bit).