@BlackSam3091Addressing the points in order,
Essentially, yes. At least, if the spheres can make it on time. Should probably make a note of that and the average speed of the spheres when defending. That's more or less the point of his powers, creating barriers to either hinder his enemies (by making it impossible for them to get close to anyone) or help his allies. Is there a problem with that? I'd be fine changing it, though with some people being ridiculously durable without armor I figured a perfect defense with sufficiently large holes in the armor (seriously, don't most super geniuses use lasers nowadays? not even getting into speedsters) would be reasonable.
The former, though heavier and more similar to military combat armor. At least, what you'd expect a very successful mercenary to have in the DCverse.
Ah, alright. How does changing the name to 'Epicycle' sound?