Fantastic holster and innovation from DAA, excellent quality and every detail has been perfectly executed. Highly recommended.

One of the best solutions.
Very easy to adjust, after it no wiggling.
Smooth gun draw from the holster

Excellent Product.
Easy, fast and the fit of my Beretta APX pistol to the "type B" Insert Block was perfect.
I only used one of the padding pieces, with 3.75mm. It was not necessary to use anything else.
Drawing is easy, fast and light, as well as holstering the weapon.
I was so (positively) surprised with the result and with the product, that I already ordered the Insert Block "type A", to be used with my Walther Q5 Match (Steel Frame) Champion pistol.
Now, I'm going to use the same holster, for two different guns (the Beretta and the Walther), just changing the Insert Blocks.
Congratulations.

If you are buying for Sti older model wait till they have the Muzzle support trigger gaurd is to round and rocks back and forth also a
block could be a little deeper

Okay first off I'll start off with I definitely like it better than the older alpha x holster which is what I had previously. Now in the beginning I got everything set up which was a process but better than buying multiple blocks if you gonna use a couple different guns. My CZ Checkmate felt more secure with less movement once locked in which was my complaint about the Racer X. Muzzle support was also added to give a little extra security but after a little dry firing I noticed it would kinda hang up 1 out of 10 draws. Dissatisfied with the holster to say the least but took it apart tinkered with it some more, just to make sure everything was setup right adjusted some things now at least during dry fire it seems to be working , pretty sure it was the muzzle support binding a bit on the comp when the gun was drawn at weird angles like turn and draw. Shooting first match with the new configuration next weekend and will add if anything was a miss. Also I probably should add since ordering the new Flex holster I also ordered the new Henning T-1000 hanger and I'm gonna try this combination out because of the adjustments. Original DAA hanger was fine but I have T-900 mag pouches so thought what the hell. Final thought it's seems to be a big improvement over the Racer X and make sure you get muzzle support set up properly or you will have snags. Time will tell but I do like the holster.

It works perfect! Nice fitting, easy to assembly. The video tutorials are very useful. With 2 insert I can use all my guns! Nice!