KSB subspecies and taxonomy?

Hi! I recently purchased 4 KSBs, a sibling male and female from one breeder, and 2 unrelated females from another in hopes to breed them one day. When I purchased them I had no knowledge of any sort of subspecies, I just assumed that a KSB was a KSB and all the ones on the market were the same species.

I'm receiving the siblings tomorrow so I look back at the breeders' websites and ad listing and see that the siblings are listed as Eryx colubrinus loveridgei and the unrelated females are Gonglyophis colubrinus. From my understanding Eryx and Gonglyophis are synonymous but now I don't know if I want to breed them anymore if they are separate subspecies. Does anyone have knowledge on this subject? Any insight would be greatly appreciated.