No band aid needed, you just build the application for it's specific use, and you don't have to worry about issues to band aid. If your building an engine deliberately with a camshaft that is to large, knowingly, than shame on you. If you happen to have been delt a camshaft un-knowingly that yields the engine low cylinder pressures, than the choice of who you let grind or pick that profile was poor. a large problem in the industry, and factors that should be evaluated in the equation are not, and factors that shouldn't be in the equation are. If the cylinder pressures are in there correct area, and as long as you have the exhaust events timed within their respected area, you will not have a problem with reversion, and therfore no fancy reversion gadgets are needed. There is no doubt that lobe events are like trying to do a rubiks cube puzzle, and it can be pretty tricky at times. There are a million different combinations that can be had.
The right choice of valve timing events and you'll be fine. As far as headers. I have never really seen a header that was on the longer side for primary hurt and application in it's torque curve output and broadness, although many primary tubes that I have seen in the industry are just to short. Easier to build? Save some money? Need to fit into a certain box? Not quite the understanding of how an engine operates?
Strange Magic Camshaft Technologies
Decisions on parts and advise should not be based on how much money a company can pour into marketing. This is a common mis-conception in the industry.