Looks wonderfully cooked, but it appears you didn't cut it all across the grain on the thick end. These guys are tricky and change grain direction in the middle of the roast.
Watch this short tutorial video for a better way to carve tri tips.
Modded Brinkmann Gourmet. Basic UDS. Rescued 22.5" OTS. SJS Mini-WSM. Stubbs. B&B Oak Lump.
Cannondale 2009 F8 (for burning off all the great BBQ)