I don't often carry concealed, but when I do, I consider it to be a degraded mode. For me, carrying openly is more efficient. So I seek out training in drawing from concealment and I practice the skill. This is the same concept I used in training my soldiers. I train harder than I expect to fight.
This week I attended a two day class at KR Training in which I fired 318 rounds, most drawing from concealment. This allowed me to improve my skill and measure myself against the shot timer and my fellow students. I had no late shots and was able to keep up with everyone else. I easily passed the state mandated course of fire for this certification.https://krtraining.com/KRTraining/Classes/SchoolSafety.html
Works for me. At least once a week (church sanctuary during worship) and sometimes more (hospitals), I will be carrying concealed.
For those who prefer to carry openly, I recommend the Safariland 7TS ALS retention holster with QLS locking system (QLS 22L) and Guard. Also, the Kore Essentials gun belt. Stiff enough to carry my S&W M&P Mod 2.0 9mm 5inch plus 2 extra mags (48+1), phone, pepper gel and tourniquet. Costs $60.
I also suggest practicing drawing from concealment and seeking out training and other opportunities to measure yourself against time and/or other shooters. Work with the gear you will actually be wearing. I changed concealment garments during the above class and found that the heavier jacket was easier to work with as the lighter one, being more flexible, was harder to manage. My suit coat would be somewhere between these. It takes practice.
I may never be a Master level competitor, but I am working to be the best I can be.
O. Lee James, III Captain, US Army (Retired 2012), Honorable Order of St. Barbara
2/19FA, 1st Cavalry Division 73-78; 56FA BDE (Pershing) 78-81
NRA Distinguished Life Member (Disabled Vet), TSRA, NAR L1