Melkor
I can see where that would make sense Kintire - but it seems kind of ridiculous to bother with tables that have results that are only applicable in the very rare event that the opposed dice rolls result in the exact same number.
Well, yes. But that's what you get for changing systems midstream!
DigitalMage
I am not seeing a compelling argument for downgrading I am afraid.
Well, consider this example, then, subtly like your own...
E.g. Fighter has a 1H Sword skill of 86%, a Damage bonus of +d4. He is wielding a Bastard sword doing d8 damage. He attacks Swashbuckler who has a Dodge skill of 97%, a rapier parry skill of 85% and is wearing a puffy swashbuckler shirt and tight breeches
Again, we will assume success. Also, assume average damage.
Fighter's first attack hits. Swashbuckler now has to choose to dodge or parry. he chooses dodge, as it is higher. Fighter does minimum weapon damage (1 point) and damage bonus roll (roll of a 2) for a total of 3 points of damage. The hit location roll indicates that it hits Swash's Chest. He takes 3 points of damage, which will be enough that he doesn't want that happening again.
Fighter's second attack comes in. Swash has realised that Dodging won't save him for long, so he elects to parry. His parry is successful. No one really cares. Fighter now does average damage, 4 +2 less the APs of the weapon makes 4. This will probably take out a limb, or the already wounded chest, or seriously weaken a head or abdomen.
Swash surrenders, as he realises he is utterly doomed. It doesn't matter if his skill is five, fifty or one hundred and fifty. He cannot defend himself at all. The best he can do is reduce the damage to the point where it will take several hits to kill him.
This is the basic combat system, and its unacceptable. You HAVE to play a heavily armoured type. Anyone else is doomed. Parrying is useless, except with a shield, and then only if your opponent is foolish enough not to be using a two handed weapon. No swashbuckling rapier duelists, no skin clad barbarians, no lightly armoured skirmishers. If you do not have armour at least equal to your opponents' minimum damage you might as well not show up.
That being ruled out, we have two alternatives. Straight success failure rolls. These take too long, even with the reduction of skills over 100 rule. That leaves downgrading success.