Why doesn't Zcash miner show which card generated rejected share in stats or log files? That is an extremely helpful feature of ETH miner when it comes to troubleshooting overclocking. Now when it freezes - go figure which one is guilty.

On the other hand ethminer takes about a minute to initialize on some of my machines, apart from generating DAG files. Zcash miner is much faster in this respect. Why such a difference?