With the merger linking our MR & SPG accounts together, we now have 2 options of converting our club points to United miles:
1. Using our MR account
2. Using our SPG account
However, it seems unwise to use the SPG account for the conversion, because we get a 20% discount with our MR account!
If we convert 20,000 SPG points we'll get 12,500 United miles (1:2 conversion ration while SPG tops up our redemption with 5,000 points for every 20,000 we redeem).
But these 20,000 SPG points worth 60,000 MR (1:3 conversion ration), and it's enough that we convert 54,000 MR points to get 25,000 - a double for less!!
Actually, even without the 20% discount it would still have been much more worthy to use our MR account for this conversion.
So... Don't make any mistakes or you'll loose valuable points\miles