Wheels shouldn't be going out of true while JRA, so something is wrong. The usual culprit is insufficent spoke tension, and plenty of bike shops seems to be blissfully unaware of how to set that up. Can also be that you're getting spoke wind-up, which also would explaing why your wheels are getting out of true repeatedly.

With that said I guess it's not entirely impossible that you for some reason have gotten a batch of spokes/nipples that simply are more prone to unwind than other.

If you really are significantly harder-than-average on your wheels you might benefit from a rebuild with butted spokes. DT comp on the DS and DT rev on the NDS (or the equivalent spoke gauges from another manufacturer) will usually result in a nice tension balance. Some mild threadlock with linseed oil being a personal favourite can also be helpful.