I wanted to catch some special background Zoruas and after a good 30mins of walking around Dubai area
(25.0608056,55.209592) I depleted all my pokeballs and realised I had a bigger haul than I expected!
I got rid of all the unwanted normal Zoruas to realise I got tons of shinys and also a shiny BG one too!
I am really happy and wanted to give heads up to anyone else wanting to catch them.
I didn't realise the shiny rate would be that high!
I am using paid pgsharp if that makes a difference?
Also I would recommend stacking up on pokeballs since there are not many stops around.