Combi Fares

Hi
I rang the flying club to book my September flight to LAS in economy returning from JFK in Upper.
As there were no reward seats going out, I thought the best way to do this would to off booked a M or B fare code going out just in case those g's or something in premium economy came available to upgrade too) and upgrade the return leg from JFK from economy to upper for 40k miles.
Anyway, the very friendly fc assistant on the phone suggested that I took a combifare, which was the economy flight going out, returning from JFK in upper, still earning miles and tier points. This was for 20k miles and approx £750
I think I got a good deal. I had 60k miles to play with, and I've still got 40k! Just wondering if anyone would of done something different to increase value?
I rang the flying club to book my September flight to LAS in economy returning from JFK in Upper.
As there were no reward seats going out, I thought the best way to do this would to off booked a M or B fare code going out just in case those g's or something in premium economy came available to upgrade too) and upgrade the return leg from JFK from economy to upper for 40k miles.
Anyway, the very friendly fc assistant on the phone suggested that I took a combifare, which was the economy flight going out, returning from JFK in upper, still earning miles and tier points. This was for 20k miles and approx £750
I think I got a good deal. I had 60k miles to play with, and I've still got 40k! Just wondering if anyone would of done something different to increase value?