Yep, those are the guys who do most of the more realistic looking, and tru-scale, stuff. They've been re-releasing a good number of "classic" RC cars lately. Fortunately with updates to the designs so they can handle the power of modern power systems.
What will a taller tire get you? Higher top speed. But at the expense of more strain on the drive train. Now, going from a 2.2in to 2.4in probably isn't going to change things that much, but be aware that going to a taller tire is just like going up in gearing. So expect your motor temp to go up.
You're a dedicated guy, slogging thru all the back pages of TEC!
I also subscribe to RCCA. I devour each new issue in one sitting! Then go back and re-read it all more leisurely. Gotten some good tips.