Inka vs. Trekker - Do you have an opinion?

Capped, if it wasn't for the black grip section on the Trekker these would be almost identical.

Uncapped it's a different ball game.

Trekker is a little longer but harder to uncap. Inka is like writting with a golf tee in this mode. A little awkward but doable.

Inka includes a stylus tip. Still like using a golf tee though.

The Inka can be made into a full size pen that is longer than the Trekker.

I know the Inka is stainless and carbon fiber. I believe the Trekker is stainless and some type of rubber (but I don't believe it's carbon fiber). Both are around the same price. $20 to $25. Inka has a titanium version as well and I see that they've reduced the price to $50.

They both sport a pressurized refill. The Inka is a smaller one. Not sure how long it will last. One interesting note is that it doesn't appear to have the blob issue that Fisher refills do where a blob of ink often forms on the tip of the refill.

Is there some colaboration here on the pens? Fisher helping with the refills and Inka okaying Fisher using a similar design? Or Fisher upset with Inka for coming out with a pressurized pen and Fisher figured they'd come out with a similar design with their own refill?

If there wasn't an agreement, would this just be something where one company took advantage of the other and "no big deal" or would this be highly frowned upon?

- Mark