Sorry John - I loathe the grip pod. I wouldn't take one if it was free. If I want a bipod, I'll get a bipod.
After much time behind a gun I have learned that I much prefer handstops to vert grips. I started with full size vertical grips like the Tangodown that I grabbed full-retard (like a broomstick).
I found my accuracy diminished as I tended to torque the grip and roll the rifle a few degrees inboard. My wrist and arm got tired faster as the hand position was uncomfortable for long periods. As I got tired, my elbows started creeping up into a chicken wing, which is less stable than a tight elbow down stance and also affected accuracy. Finally, the grip was a snag hazard on my gear and the environment.
Then I moved to the TD Stubby on 1913 rails and the Magpul VFG for direct connect to MOE Hand guards as I learned a thing or two and progressed to a thumbs forward/thumb break grip.
This was a much better choice and I didn't need a the full length of the grip anymore. The shorter grip hung up on stuff less and the new hand position was much more comfortable and didn't cause me to torque the rifle as much or chicken wing giving me better hits for a longer amount of time.
As I shot more and more I found myself going to more of a C-Clamp. No, not the Chris Costa hyper extended elbow crap - just a normal comfortable arm extension with some bend in my elbow and my thumb over the top of the rail. It was less fatiguing when spending long amounts of time holding the gun at a ready position instead of shooting and still kept my hand in a position to work my light, drive the gun faster, and control the muzzle.
This led me to want a handguard that was as slim as possible and a vertical grip was contraindicated. I tried a few thicker triangular shaped hand stops - like the Magpul AFG. They just wouldn't do either as it made me open my hand up too much and cause me too lose some grip strength. I wanted just a slight bump out in the back so I had something to pull against with the heel of my hand and as little material as along the tube under my hand so I could get my thumb over the top without opening my hand so much. I finally settled on the below:
If it was MLOK, the Magpul MLOK Handstop is my answer.
For 1913 rails I prefer the LaRue Hand stop. I also like and and have used the Magpul XTM Handstop kit.
For the Key Mod I am looking at either the BCM KAG or the Strike Industries Link Curved Foregrip. I am not 100% yet but these seem to be the best options I have found so far that are KM compatible and have the attributes I am looking for. I am still looking at KM options (I prefer MLOK but the LaRue deal came with Keymod) so this may change. If they made the Magpul Handstop in Keymod, I would be all over it.