Well... a few days with 50 A4+ now and they really do suck.
I've got all 50 in Awesome Miner so I know when they stop mining and the stats aren't good.
If I mine on a pool that isn't 100% stable/efficient they can't handle it and where I assume the AntMiner D3s/S9s I have just deals with it and pick up where it left off the A4+ stops mining and restarts the mining process, losing you 5-10minutes of shares. NiceHash is a complete no-go too, they're can't handle it for some reason (vardiff?)
I'm using litecoinpool.org and this does appear to have helped stability. will update again in a few days.