[Karibou]

Originally Posted by DareDad

So, an improved portcullis is:

• lighter.
• has no exposed counterweight components.
• has fewer sharp edges.
• has a door that can be locked in place during transport.
• has handholds for the field reset folks.

I'm sure there's more.

I'd specifically say "has no exposed track components" - the weighting isn't the issue regarding pinch points (aside from the top-heaviness), it's the exposed track/wheel And if you cover that, you also pretty much cover the spring. But otherwise, that's a solid list. Just adding a latch/lock or handholds alone would have saved a lot of fingers.