Given your concerns about grip printing and needing absolutely no printing whatsoever I would recommend only a Glock 43, 26 or maybe a 19. If you’re carrying in an environment where concealment is critical the 17 and 34’s grip length is a disadvantage when compared to the others. If you do need to stay with the 34 I would order a JMCK 2.5 wide spaced PTD loops, foam wedge and in comments ask for a shim to place below the claw. I would call and talk to @
TonyMayer to get his suggestion.
Below I have listed what I use. With all of these I use the Area Aegis enhanced , while expensive, I find the stiffness and ease of adjustment improves concealment and comfort without having to cinch the belt down as tightly. Also all of these pistols are equipped with the Gadget.
Most of the time, when off duty, I carry my 19.4 plus a TLR-7 in a JMCK AIWB with the foam wedge and the claw shimmed up to increase grip tuck. Previously my default was the eidolon with my 17.4. Now I rarely choose the eidolon.
With both of those options there is no printing while standing upright, but I accept some minimal printing when moving or depending on my position and clothing which most people would never notice. But I am a cop carrying in my jurisdiction, if you have social restrictions which make you more concerned about absolute concealment I would drop down to one of the options below.
When I want less chance of grip printing I carry my Glock 26.4, I use a ten round mag with the Pierce Grip Extension PG-26XL which matches the Gen 4 texture. The extension adds length only to the front of the grip, which when carried AIWB(JM Custom Kydex Wing Claw 2.0 with tuckable 1.5” overhooks) does not impact my ability to conceal.
See photos of that here:
https://pistol-forum.com/showthread....l=1#post660073
When carrying either the 19 or 26 I carry Glock 17 spare mags in a JM Custom Kydex AIWB SPMP.
For deep concealment, when carried in a manner other than AIWB, the Glock 26 is much harder to conceal than a Glock 43.
But even carrying appendix, if I am really worried about concealment I use the Glock 43 in a JMCK AIWB with split loop and foam wedge and carry two spare magazines one in a AIWB-SPMP.