another suggestion :>

[Neco]

I can post a replay showing Morphling super towers having around 2x the damage of super Makrura towers. This is tested in-game, confirmed, with no theory involved.

You're right, for some reason in-game I'm getting back data showing that Morphling towers attack way faster than they should. Definitely suspicious... Might have something to do with the whole loading process of Morph's towers?

Setup: 16 towers of the "super" type arranged to all hit at the same time on the target, who is teleported in.
Target: 2250hp, 13 hero armor.

Morphling: 12.857 final damage per hit
2267.130 damage over 6.148s (~175 hits, hit every 0.035s required for reported DPS)

Makrura: 8.571 final damage per hit
2288.564 damage over 12.180s (~267 hits, hit every 0.046s required for reported DPS)

Murloc: 11.429 final damage per hit
2285.700 damage over 10.680s (~200 hits, hit every 0.0534s required for reported DPS)

Removing or reducing attack animation time had no effect on any results.

[Neco]

You learn something new every day. Turns out Cargo Hold with a unit inside gives towers double the amount of attacks as normal (gives +100 IAS per unit inside, max IAS with all effects is 400). This lines up with the theory (yay numbers), and was overlooked. Thanks to @Burn for making me dig deeper into the problem!

[Burn]

Np, happy to help.

-Burn