I bought these with the intention of converting them into 600 chip cases since 500 chips just isn't big enough for most cash games IMO. 600 chips is still less than optimal, but it's at least doable. I've reached out for some help from @alecnetwoodworks to see if he might be able to make me a nice custom hardwood insert for these to make them a little nicer than the solution I came up with below, but I figured I'd share my temporary solution below to show what I did here in case anyone else wants to do the same.

Basically, I just removed the center insert that is designed to hold cards, and replaced it with 2 more rows. I removed one of the row inserts from my 2nd case and trimmed it down to size using a razor blade (it cuts easily since it's made from some sort of particle board). Obviously, this requires you to "ruin" one of your Versa cases, but you could use something else for the rows if you wanted to (3D printed insert from @One Eyed Dollar perhaps)?

Eventually, I hope to have a nice hardwood insert in these that will hold 600 chips in evenly spaced rows. But for now, this is my new and improved Versa 600 chip case.