Callen: IIRC, magical transformation and LR are not active effects. Your new you is natural, just like a magical creature claws. This is not a sustained effect, it can't be dispelled, which is the difference.
OTOH, if you're under Endurance of the berserkers, you are magical, and thus resisted.
So, if I understand:
Creo effects are resisted, as are Muto effects with target greater that Part (only the part is resisted, so a variant of Eyes of the Cat with T: Part means you can still punch a magus)
The rest are suppressed.
So:
- A flaming sword is resisted, and is an invisible blade
- Acid mutoed into water is resisted, as is the reverse
- A boulder propelled by magic (a la crystal dart) has his "propelling force" suppressed.
IMO? The distinction is clear enough that this is adjudicable (which is VERY important), but, as the effects that people usually want supressed/dispelled are the ones that are resisted here, it's useless to go with this.
We can reverse things, which works fine for the Fire and Invisible blade, but means that you would dispell a bridge you'd fall upon :-/
This is why I went with dispell for weak spells, resist for the rest.
But yeah, there is no perfect solution 
That's how I took it, for effects who are cast.
The question remains for permanently enchanted effects, like Callen's armor.
There's a guideline that says "Dispel a Hermetic enchantment with a level less than the guideline used + a stress die (must be ritual)".
IMO, it means it disenchants your item, so that it permanently loses the targeted power.
I think callen means that Constant effects can only be targeted by this. I'm not sure he is right, although he may be. I just don't know. I don't think this is bad, though.
If using this, an armor that casts Hardness of Adamantine twice per day would be dispelled by a WomS. An armor with a constant HoA would only have it cease working for the round in which it is hit by the Wind.
This doesn't solve the Aegis problem, though.
Doesn't anyone want to comment about my proposal that Constant effects are considered as Natural?
- It means that enchanted swords are better than non enchanted swords.
- It means that items like callen's armor can be brought into an aegis without problem.
- You can still disenchant them, though.