Mustang GT 10 speed transmission shudder – anyone know a good Sharjah shop?

[Jofra Archer]

I've got a 2019 Mustang GT with the 10R80 and it's developed that awful low speed shudder that everyone talks about, especially when the transmission is warm. The dealer in Dubai wants to charge me nearly 2k AED just to do the triple flush and software update, which seems crazy for what's essentially a fluid change. I found https://gearboxrepairsharjah.ae/brands/mustang/ while searching for alternatives, but I have no idea if they're actually experienced with these 10 speed boxes or if it's just a generic listing. Has anyone here taken their S550 to a Sharjah workshop for transmission work and been happy with the result? I'm hoping to find a place that knows the proper procedure for the fluid flush and adaptation reset without charging dealership prices. Any honest recommendations would be a lifesaver.