Is my copy of the regs any different to yours? I wouldn't have posted the thread if I'd been 100% sure. I'm not into wasting people's nano seconds of time so if you can't be helpful/courteous don't bother, senior member or not. I value the views and opinions of those better versed than I. That's what forums are for otherwise take it off the web mother superior.
Thanks folks for the reassurance. You've confirmed my thoughts re ref method B. it was more the grouping factor that I was concerned about. Now that I've re read osg/ regs I'm happy enough. Whereas I am not keen on t&cpc in mini trunking it's the most practical solution for the job in this case as its just for vertical drops on an install that would otherwise be ref meth C. Cheers. :grouphug: