Yes, very comparable. The lockdown/ultralok pouch material is a bit thinner, lighter & has more dividers and more stretch. They are similar size and do the same thing for me.
On the tethrd ones, they preach "one hand operation", but once you get them loaded up and all the way zipped open, I found, for me, they were not truly one hand. May be different for others, just my experience. I really liked that setup and the pouches, but ended up selling it to someone that needed one.
If they were to release it in a camo pattern that I liked, I'd be open to buy another one, but what I currently have is pretty well refined for my use and the CGM side pouches were a great upgrade from all the dump pouches I've experimented with. To each their own.