Here is the problem with user fees for GA. The fuel tax is more than adequate share of a fair pay. The ATC system was built for the airlines, GA traffic for the most part is an after thought. The amount of resources that goes into servicing GA traffic is minuscule. If GA IFR traffic drops to next to nothing and little revenue is collected that will be of no impact to this new " corporation" . There will not be a corresponding reduction of the ATC workforce to match the reduction of traffic. I am not union bashing here. I am all for private sector unions do what ever it is they do within the law. But this money grab is the reason some states prohibit public sector unions. Many states that do allow public sector unions are now being confronted with reality. After years of a system that allows public employees to bribe their bosses, the chickens are coming home to roost. This new system will end most GA IFR flying.