Slight thread drift here. What is the status of the right-side net requirement? Is it still just a recommendation also?
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I believe it is a recommendation only.

That also needs to be thought through. The SAE conference in 2004 was very positive with respect to test results of nets, but all the testing had been performed with high end "containment" seats that provide excellent lateral support of the upper body. To my knowledge, there has been no testing of nets with the typical road racing seat, i.e. one having less lateral support. My personal concern is that the net may hold the head while the torso takes off, resulting in an injury in the other direction. That said, the conventional wisdom is that you're probably better off with a net than without. There may be an update on this subject at this year's SAE.

If we keep going down this path, the only way you'll can get decent lateral support of the head with an SFI device is to drop another grand (at least) on a serious seat upgrade. Members are just gonna love that.