Oh, I can't argue against any point either of you make. The gteye is far and beyond the original spring, and still serves me well. Given the choice I would take the spring over most load cells as well, based simply on the fact that the ones I've tried had very little travel to them. I feel travel is as important as "pressure". When bare foot, the gteye delivers both in spades. Especially in regards to the gt series. But since stepping up to iRacing, and racing on a full rig (I'll grab some pics when the current upgrade phase is completed, adding a center console and a "tach" made from an old android phone) with shoes on, I feel I could use a bit more pressure, mostly on the second progression.
As for calibrating, DW, on a PC. That is easily done through the Logitech profiler. And most games have some sort of options for adjusting brakes as well. To be honest, even in misty of the other games I've played, the gteye springs progression still hits the sweet spot really well.
If it's not a trade secret, I'm curious what flavor steel you use. If it weren't so thin, I would try case hardening, but I have a feeling it wouldn't work as well as I would like, perhaps though a slightly different alloy combination would work in effectively stiffening, but not cause the part to become brittle.
