[Psionic Powers] Vision-Based, Weaker Variant
 

I'm looking at building some sensory abilities, and I noticed that Psionic Powers, p. 33 has Electric Vision with the "Vision-Based, Weaker Variant, -10%" modifier.

So far I've not been able to track this modifier to a source (but it might be an original here). I'm just trying to work out what this represents compared with the general Sense-Based, Reversed, -20%.

One possibility that occurred to me was a lower limitation value because this isn't an attack. It seems like a really useful modifier for Detect so I'd like to know the intention behind it.

Re: [Psionic Powers] Vision-Based, Weaker Variant
 

The example in Powers for Vision Based Detect uses the full -20%, and I can't tell what is different about Electric Vision.

Re: [Psionic Powers] Vision-Based, Weaker Variant
 

I think it's only -10% because you can see through a few inches of material. It would be remarkably useless if you couldn't, given the need to keep people away from electricity.

Re: [Psionic Powers] Vision-Based, Weaker Variant
 

Yep, that's probably it.

Re: [Psionic Powers] Vision-Based, Weaker Variant
 

Thanks John! That's a useful point.