No matter how many organizations are started....their membership, clubs and reach can only go as far as how many decoys/helper-trainers are available....every.single.club. in every organization is based on a strong helper/trainer and wtih few exceptions, these are men doing decoy work. Without a decoy, you have a tracking and ob group.....unless you do all your bitework training with a ball in the blind.
DVG has 20?25? clubs in the US, GSDCA has maybe 30-40 (in it's heyday, WDA had 50-60 when the Johannes Amendment started the war) and USCA has 250-300.....at one point, many people were members of 2 or even all 3 of the organizations and clubs had dual affiliations. There may be a few even now that are doubling with DVG and USCA. I don't think there are more than 2 dozen each of Mondio/Ring/PSA - I looked them up a few times, but nothing anywhere within reasonable distance.
It will take a cataclysmic event to take people/clubs away from USCA in any significant number.
Hexe Sch2, Komet & Kougar IPO1, Kira HGH, SG Bengal, Lynx v Wolfstraum ~ Ziberia IPO1 ~ ATB Basha, Kougar & Kyra, Fenja, Sch3s, Cito, Sch2, DangerRH, Csabre & Alice Sch1s ~Kelsey