What is Reddit's opinion of GM302P Pour Type Gray Gundam Marker, GSI?

From 3.5 billion Reddit comments

Here. Very consistent results. Also an normal eraser works great too where in alcohol tends to seep into the depression and is prone to wipe away ink from the line itself, an eraser just doesn't do that.

I use the GM 302 marker and it works amazing.

Here is my Atlas. Do you know your marker number? This one has a very fine tip and it bleeds into panel lines, making for super simple clean up.

This is the best one to start out. It's easy and fool proof.

Once you get comfortable with regular pen, move to other types like Pour Type or even Tamiya Panel Line Accent

Yup, that's the ticket. It works the same as the Tamiya, but, you know, in pen form instead of bottle/brush.

You linked the black, here's the gray and here's the brown.

They only make the pour-type in those three colors.