The Seecamp was the darling of all the gun/shooting magazines, of the time. I got on the Seecamp waiting list, shortly after they came out. When it arrived I was still surprised by how small it actually was and it was extremely difficult for me to shoot. As a result it has only had about 1 or 2 boxes of the prescribed Winchester Silvertips through it. I did carry it a bit in my right rear pants pocket but was never completely comfortable using it. I also got on the waiting list for a couple spare magazines. I was completely surprised after several years had passed and I actually got a notification from Seecamp that spare magazines were finally available if I was still interested.
I bought the Kahr Arms MK9 to carry as a backup duty weapon and it was carried in either a Galco Ankle Glove or in a Strong Pocket Holster in my left front uniform trouser pocket.
The MK9 was an excellent weapon that never gave me a problem qualifying but it is a bit heavy. But that weight is a plus when actually shooting it.
After I retired, I was working in a local gun shop and a lightly used very early Kel-Tec P3AT came in on trade. I snagged the P3AT to carry in my right rear pants pocket as a backup to my EDC SA Micro .45 acp 1911. I shot the little mousegun quite a bit until 1 day at the range, I fired a shot and the trigger went dead. I contacted Kel-Tec, fully disclosed that I bought the pistol used and they told me to send it in. Kel-Tec replaced the entire frame assembly reusing the old serial number and I had it back in less than 2 weeks. Great service.
The Kahr P380 was purchased as a replacement/upgrade to the Kel-Tec P3AT. The P380 is a smooth shooter that is great for those occasions when I want to still be armed but it absolutely has to be completely hidden.
The Kahr CM9 was purchased simply because I was managing a gun shop at the time and I could get it at cost and it is considerably lighter than the MK9 but still fills the same roll, deep concealment. Plus it uses the same magazines and holsters as the MK9.