Frankly, pistols like the XD9, and Glock do not lend themselves to CCW with an IWB holster. They are just too darn fat. Now a slender 1911 platform is another matter
Not one bit true. I carry a 23 around all the time. Just yesterday I went to the dentist. Neither he, nor any of his assisstants saw it (CTAC).
It is NOT at ALL hard to conceal IWB with a Glock. It is extremely easy.