A personal guess on the first combat unit to have received J-10Cs is 43rd Regt at Huairen. The reasoning is as follows:
This conclusion assumes a couple of things including:
- Various formations were spotted rehearsing for the parade at Huairen including J-20s, J-16s, GX-aircraft, etc.
 - J-10Cs along with H-6U were spotted both rehearsing and just flying around in general.
 - It's likely that the J-10Cs and H-6U were also spotted at Huairen.
 - However, unlike the J-20s and J-16s, zhang81zhang managed to get of the J-10C.
 - This suggests the J-10Cs were not photographed during spontaneous rehearsals but were photographed during their regular landing/takeoffs from a permanent base.
 - If Assumption (3) is correct, then the permanent base theorised in Point (5) would be the Huairen air base, which serves the 43rd Regiment currently identified to be flying J-10As.
 
I can't guarantee the veracity of the two assumptions but this could be a good springboard upon which to further estimate J-10C distributions.
- Zhang81zhang took the J-10C photos at the Huairen, the same place the J-20s and J-16s were spotted.
 - The J-10Cs are permanently based at Huairen instead of being temporarily assigned for rehearsals like the other planes.
 
Huairen would be interesting, since it is indeed the 43rd AR/15th Ground Attack Division ... would make sense.
And at least he does not longer ps the serials.
				
	
			
	







