I don't understand all the concern...
The valves have a range of mechancial adjustment and they should be tunable within that range. While the settings may be optimal N/A, there's just no way they could be optimal FI.
I seriously doubt you can adjust it to a range where mechanical damage to the valves or cams could result -- at worst it would result in changes that affect cylinder filling, which could result in detonation or suboptimal power, but that's the case when you adjust any engine parameter.
Sooner or later, someone like Power Enterprise will come up with something... either that or we're not getting the whole story. It just seems silly to disregard the adjustment of adjustable valve timing