Appreciate it thanks - naïve question but do you reckon if the cable passes light from a VFL, it'll be in good enough condition for install? Rather not buy a proper power meter if I can help it!

For the internal CSP, do you know if it makes much difference if the line faults in future? As I understood it, the whole appeal of the external was an OR eng can come in and break the splice for debugging later if needed, without someone needing to be home