IMHO better tool control is precisely what Torx is about. Provided you do have a Torx tool of course, and not try using a hex drive that almost fits.
None of my Torx T-20 would clear the bottom of the tank. I built a tool for it, but it was fiddly. I learned from someone here on the forum to install simple hex drive fasteners that take a normal ninety degree 3mm Allen key which makes the tightening process much less fiddly for me. Certainly, the capture, or "bite", is much reliable with the Torx. With the exception that the original fasteners for the TPS were quite shallow, as I recall.
So many "mapping" issues are inter-related to "tuning" issues. One of the conundra of the FI is the way you can compensate, overcome, or otherwise cover up some shortcoming by tweaking, or cheating, or 'tuning' some other sensor, input, or the map itself.
Good, though, I think; better than wire drilling jets and clipping advance springs!
You can purchase a Tox bit that has a 1/4" shank. You can use a 1/4" wrench to loosen n tighten the screws with. Send me your address n I will mail you one . If you can't wait go to an auto parts store or sears and get one..........