I’ve been running at 31kHz for a few days now and it’s been ok. I even did a cut last night and it came out well.
I’m still using the stock Maslow board and it hasn’t burned up yet 
there were a couple times I saw some uneven sled movement / studder that were concerning, but it only lasted for a couple seconds each time. Not sure if it’s related.
@Bee I’ll try your TLE board next