If the set doesn't make it through, should I do a rewrite of the Specs set as I'm the author of that set originally?
Like I said before, most people end up keeping their Steel-types in anyways, since they don't expect an Analytic Magnezone.
Even if I could not 2HKO, Blissey would have been forced to Softboiled as Magnezone simply fish for Charge Beam boosts.
What you just outlined is a universal flaw of Magnezone not unique to this particular set. Unless you're running ScarfMagnezone, any Magnezone will be vulnerable to super effective revenge-killers. This Magnezone has some usable bulk to switch in on numerous occasions, and it has Substitute to shield itself from such revenge killers.
Although I am not in total agreement here, it is an option. A non-choiced Analytic set like the following could work.If "this set" is going on-site, then it needs facets of both opinions- specifically, just slash Analytic onto the Specs set, and then make a second "analytic booster" set. The two sets are WAY too different to be crammed into a single set.