Weapons like Sudaruska (ASI decrease high) and Fang of Vog (asi decrease max) should have these stats officially listed on the weapon.
Currently attack speed increase is limited at +6 for Maximum! boost. This still leaves Fang of Vog at a standard unboosted 3-hit combo speed of a brandish line, and the Sudaruska at a similar attack speed to High boosted Sealed Sword line.
Slower weapons like Triglav are grossly underused for a multitude of reasons, the innate slowness one of them. Having a listed ASI decrease, as opposed to an unlisted one, would allow the wide variety of equipment slots that boost attack speed to be taken advantage of fully on slower weapons, and perhaps rendering them more useful. Given the addition of the pet slot for a perk, it is more feasible to boost your weapon attack speed past pre-limiters.
Plate helms and armor have the attack speed decrease listed on them. Why not the weapons?
Note: This would effectively be a buff for slower weapons like the Sudaruska/Triglav, giving a start to the fixing of it...
(ASI estimates based on http://wiki.spiralknights.com/Lancer_Knightz_%28Guild%29/Sword_Combos_Pe...)
Umm... That is their natural attqck rate. It isn't lowered by some ghost uv.