I tested the Glorious 3XL with four different mice with different sensors. I tried the Rival 110 (TrueMove1), Logitech PRO Wireless (HERO), Dream Machines DM1 FPS (PMW3389), and Logitech G100s (AM010/PMW3320). My tests included various swipes with the MouseTester software, as well as some fast-paced FPS gaming. I encountered absolutely no sensor anomalies in my tests. Since the pad is plain black, there shouldn't be any issues with older or lower quality sensors either.
SteelSeries Rival 110 - TrueMove1
Logitech G PRO Wireless - HERO
Dream Machines DM1 FPS - PMW3389
Logitech G100s - AM010 (PMW3320)