I bought the "New Galaxy Style New Nintendo 3DS XL" (the name rolls right off the tongue -_-) which comes standard with 11.0. It was no big deal, as it was going to replace my o3ds, which already has A9LH and fieldrunners set up.
I system transferred... and fieldrunners didn't show up. I followed the guide and downloaded fieldrunners on the n3ds, then restored a backup of my o3ds, transferred fieldrunners to SD, then put that on the n3ds SD card. And... nothing. I was basically having a panic attack for 10 minutes until I realized I was using the wrong NAND dump (I had two very similar dumps that basically only had fieldrunners installed).
So I transferred to SD, put in n3ds, and finally got it to transfer from SD to the system. Followed the guide exactly and downgraded FIRM to 10.4. From there I used Freakyhax to run sysDowngrader. Halfway through, error occured and got a partial downgrade. So I ran it again, and the second time it completed fully.
From there it was smooth sailing. Decrypt9 ran first time (every arm11/arm9 exploit I ran from Freakyhax always fully booted, so It's currently my favorite entry point for downgrading), 2.1 ctrnand transfer completed fully, then safeA9LHinstaller did it's thing and boom. A9LH n3ds.
I would like to think I'm the first to A9LH the New Galaxy Style n3ds, but I'm probably not.
And now I get to set up my o3ds A9LH system to sell to a friend for $150, making the upgrade to a n3ds only cost about $50.