I got no problems with legacy miner, runs stable with my RX570 cards. After latest update i got no problems with algo switch either.
I've already done tests with excavator 1.2.11a and my AMD GPUs but dual mining was not optimal while single mining gave me same mh/s as claymore.

I'm still looking foward to switch to excavator because it is developed for nicehash as far as i know, so why should a use claymore if the pool i'm using  pays devs to develop a miner for their pool.

I guess Zawawa is busy polishing things.