Yeah.. other people could too. I'm not sure if that line of code was right when I built it or what.. in fact, I may have only made the mistake in a beta version. I'm not sure, so I'm telling people to just get it again. Smaller size and new stuff is worth it anyway. Just make sure you write down your calibration before switching because it's stored in a different place.
Riski was successfully using a calibration of-94 on an official cart. R4 was in the -400 range I believe. Hope that's helpful.
Edit: I see what you were doing. The 4th gen way of "calibrating" was the long way around to get exactly what the calibration box does. I responded in the thread, hopefully it'll make sense. It's much faster (and easier, imo) than the old calibration method.