I'm currently testing pure2 on my vuuno4k with FBC dvb-c tuner and a Sundtek USB sat tuner without issues with the same Driver date.
I did have issues with unofficial OpenATV 6.3 image where it was randomly sticking on boot but removing the tuner allowed me to boot box and a quick reflashed fixed it but I put that down to unstable image.
I would enable debug logs then enable tuner and when the box jams on boot grab log and send it to Sundtek support there chat team is actually good when I had issues with my first tuner they fixed it straight away.