Shifters arrived this morning, pretty easy install.The XT Rear derailleur worked perfectly but front derailleur took some tweeking, I had to pinch the cage together about 1 mm and I mounted the cable at the bottom of the pinch screw to gain a smidge more travel from the shifter. I will probably change the front derailleur at some point to amore compatible road triple. It works fine for now.
Deore vee brakes work perfectly with the Sora 3x9 shifters (R3030)