Hi Mike,
I'm certainly far from being an authority on these things, but it is my understanding the idle range and full throttle range would imply (if out of ranch) that the TPS may need adjusting. If the readout did not increment gradually by 1 as the throttle is increased/decreased slowly and smoothly it would be an indication that the TPS may need replacing and/or adjustment. When I first tested my 07' it skipped a bit. I ran the test several times and it smoothed out from idle to full throttle. I think it was me at the start, as I just wasn't smooth and slow as I got with a little practice. I would try it a few more times and hopefully it will smooth out indicating technique was the culprit. If you continue to get the same results and feel confident you are smooth and slow and it skips both opening throttle and closing, you may have an issue. However, with that said, if your engine is running smooth and you don't have a jerkiness when you launch or any idle conditions out of the ordinary, it starts and idles as normal when warmed up, doesn't want to srall during take-off, I would say, ride it! I think this test is of some value when there are other symptoms, otherwise if it were me I wouldn't want to fix something that isn't broke.