I've transferred my 24,000 to my wife's account, which had 106,000. With the 100% bonus miles for making this transfer, that means her account (which is really mine as well), now has 154,000 miles!

When we transfer form Worldperks to Skymiles, we will gain more bonus miles (40,000), so this looks like a good deal to us.

.... unless, of course, it's a bad deal to go with Skymiles in the future. I can't figure out any good alternatives (we've always flown NW a lot).