DDM has shown a correct way to calculate feats like being away from the nuke, so I would wait for his opinion on the matter, so a recalc would be ideal. As for the Fuel Rod, it appears to one-shot a Phantom, which definitely seems weird considering what we know of its capabilities. But it seems to be a fragmentation feat, so it might not be too out of line.
As for those charge feats, that could be worth calculating, the ground pound one especially so. Eyeballing, they look like they could potentially be 9-B+ to Low 9-A.