We are just back from our Japan ABD and I'm still catching up so I apologize if someone else has said this, but you also have the British Air route to try for JAL tickets. That's what we used for half of our party of four to fly First Class RT between Japan and SFO on JAL. BA costs a few more miles, but URs and MRs are easier for us to amass (I didn't do the grAAVy train) AND you can share avios between the entire family on BA. I was also able to take advantage of 30% transfer bonuses from Amex and Chase, which basically negated the American mile difference. I believe
@Calfan used URs for JAL on Quantas. Not sure why her guy went that route (she used a booking agent), but that's another option as well.
The other half of our party of four (DH and DS) flew one way in Business and one way in First using the Virgin Air redemption on ANA.
JAL First Class was amazing. The service was incredible, and the food and drink were top notch. I was sipping on Cristal champagne in both directions. The boys weren't as impressed with ANA business, which seems to be an outlier as I've read great things about the product, but they LOVED first. They were the only two people on the way back and they were basically treated like royalty by the 3 flight attendants. My husband is not a drinker, but he did sample some of the $500 a bottle Japanese whisky! My husband told the flight attendant that he was going to take a pair of the PJs home for me, and she offered him an extra pair! So I now have quite a collection of airline PJs
I'm doing a report about our trip in the ABD forum if anyone is interested. But the churning part of the equation was a major success and has now ruined us for business, LOL. My entire family, including myself, our now part of the Plane Princess bandwagon. I actually had to book tickets for next summer while I was in Japan, and I wasn't able to get first in BA--I was so bummed. But I did manage to get all 4 of us round trip in Business on BA so I shouldn't complain