Ok first off let me state for the record, I'm an idiot. Had no back up of my old su app. How ever that was easily solved by getting the apk from Tiramisu 1.8.
I can confirm that root can now acces build prop settings ( and maybe anything else?) the new superSU won't.
Process is pretty simple- Get hold of previous superuser apk file ( if you can't find it on the market let me know and I'll host it some where,it didn't show up for me)
Install this file, go into prefrences and hit update binary.
Let it do its thing, grant any acces asked by either new or old apps (SU or newly installed)
Run update again.
That should be it.
Old (by old I mean original from previous rom versions) su program should now be default for any root permissions.
Then i disabled and force stoped the SU app the rom came with.
So far no problems, I apologise for the long post but maybe it can help someone else out too.
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