I think that's what I will do. I will credit the JFK-LHR flight to VS. (although I'm trying to upgrade to Premium Economy right now) and if that happens, then BD will give me 1.5x the miles from JFK-LHR. If that happens, then I can also credit the LHR-BOM segment on BD, thus earning 1.5x + 3x miles due to the promotion. The return leg is still listed as BD metal so I'll earn 100% on that as well. I will try to upgrade my last leg to PE as well (would be at LHR before boarding) and if that happens, will credit that to BD as well. I will do this only and if only I can get upgraded to PE. Otherwise I'll just credit those 'N' fared flights to VS. But I think VS will give 50% of the actualy mileage flown as well. I can only earn 100% miles on N class if I use Continental OnePass.

I have to yet to open up the BD Freq. Flyer Acct. or the VS acct. I just don't want to keep opening accounts... That's why I posted here

Thank You for your help...