The Side Blade seems like it would make more sense if it were a Rear Armour rather than a Back Armour accessory (plus it actually has some minor clipping with most of the Tails), plus it'd give us a non-tail Armour Rear accessory
I know I'd start saving up for a Side Blade if they were Armour rear.
Can't say there's anythin' wrong with this, especially since it makes more sense than tails cutting through metal just to wag back and forth.
Heck, people will get limited editions Side Blades that are still an Armor Back accessory, and feel GOOD about themselves due to ownin' a limited addition piece of equipment.
Variety is a nice thing, too. Havin' only tails as Armor Rears seems silly, and thus needs a CHANGE. Yes we can, I say!
EDIT: Actually, lookin' at it in Spiral Spy tells me that the Wolver Tails clip less than the wings. To be honest, every back accessory clips with it.