Finally installed my DDI Seat Jackers, MMP, angled extension and clockable extension:
I mounted 4 magnets on the back of the MMP - they are really stout, and any major force forward will just drive whatever is attached there into the magnets instead of away from them, as would be the case if they were mounted on the frot of the MMP.
The Bladetech TeckLok holster attachmenet is a perfecy fit on the clockable extension - a perfect fit and location for my... you know what

Plenty of room to install and remove the floor mats easily. Also enough clearance - just - above for the seat to be positioned all the way forward without hitting the top of the extinguisher mount.
Now I just have to figure out what I'm going to do with the newly liberated space under the seat...
Not enough real seat time yet to draw any meaningful conclusions about ride comfort with the seat jackers, but... I like them a lot so far. Very surprised by the difference they make in choosing the best seat position. I'm 6'4" with a 36" inseam and was never able to find a good seat position that offered both thigh support and lower back comfort. So far, with the seat jackers, I'm trying to choose between several different options which all feel better - some of which, surprisingly, have me moving the seat closer to the steering wheel instead of set all the way to the rear. This relieves strain on my arms and avoids the feeling that I'm reaching for the steering wheel.
Anyway, great set of products, excellent fit and finish with a multitude of setup options. If I had to find something to quibble about, it would be the extinguisher mount. Unless the eventual replacement extinguisher is EXACTLY the same diameter as the current extinguisher, then one would be searching for some different foam inserts; but I guess I'll cross that bridge when and if I come to it.
HTH