Wanderport’s contingency positions are to use the lower powered magnetrons with two inductive drivers or to use 2 air cooled magnetrons that the driver manufacturer certifies as compatible while permitting a manual calculation to compensate for the 30 percent loss due to air cooled magnetrons rather than recuperating the 30 percent loss by flowing water through the usual water cooled magnetrons.
Way I understand it plan A is to use the "almost-production" setup, the one they had all along, just with the lower powered magnetrons that would go with the newly procured drivers. There should be no major number fudging there, tested numbers should be close to finished product specs, more or less... The contingency plans are either replacing the drivers with "inductive drivers", whatever those are OR using the normal drivers but with air cooled magnetrons and this is where the manual 30% addition would occur. So the way the PR is worded it sounds like they would use the air magnetrons only if the other, "main", option doesn't work. It would be plan B or C. At the end of the day it's good they have more than one option since it leaves fewer ways to weasel out of getting test numbers.
Unfortunately it sounds like they still need production of magnetrons and drivers, having the magnetrons and drivers meet and go in the same box, having that box shipped here, having whatever changes made to fit it all in the box and wire it all and only then testing. Sooo much that could go wrong. At least a couple of months before results, at the earliest. And then the holidays will be here so...