RAS (Roadmaster Active Suspension)?

I have a 2017 Toyota Tundra CMOR 4x4. Previously, had a shell with my DIY drawer that I kept tools, recovery gear and camping gear. I have a Bilstein 6112/5160 lift installed with a deaver half pack for payload (used mostly for camping, hunting and deep sea fishing). It had the slightest sag in the rear, maybe 1/2" lower in back.

Just got my GFC a couple weeks ago. Sold the shell and removed the drawer and tools. With just the GFC, it now sags about 1/4-1/2" more than before. I just ordered the RAS (Roadmaster Active Suspension) kit for the rear, hopefully installed next week. From what I’ve read and seen in vids, it’ll raise truck, level it under load and help with payload (or possibly towing ability). Anyone here have this in their truck and what has your experience been?? Thank you.

For anyone considering using this, it definitely raised the rear and is suppose to help level under load and improve the ride. Here’s a before and after pic.