Glen thanks i'm using the SEPST because dealer said it would not void warrenty.......plus i'll be stationed in Germany for a while so I was just wondering if I could get by without a dyno
The SEPST software contains a feature with which you can install a special version of your base calibration and ride the bike on the road while taking a data log with the SEPST attached to the bike. You then hook the computer up to the SEPST and retrieve the information which the software will use to generate new VE tables. You can then take the resultant calibration, put it into the bike enabling "smart tune" again, and repeat the process a few times. The more areas of operation you cover the truer the VE tables will become populated and this is in essence what constitutes the bulk of a good "tune".
The TTS setup currently requires toting a laptop or other type of MS Windows-laden computer while taking the data-collecting runs. This is a minor inconvenience, to be sure, but the TTS system is so much better at the process that it's worth it. I believe the SEPST can also do the data runs with a laptop attached if one wishes to gather more data than the limited internal storage of the SEPST can contain.
Neither system will protect your warranty any better than the other. The only one which (may) unequivocally protect your warranty is the "street legal" version of the SEPST which only allows installation of "canned" calibrations.
Enjoy your time over there. I understand there's some good riding routes/roads.