This morning, a Twitter follower asked me about pen latency on the Surface Studio and another artist chimed in that latency was unacceptable on the Microsoft devices. I went down to the store and shot a quick 200 fps test in Sketchable and then came home and reproduced it on the Cintiq Companion and again in Procreate on the iPad Pro. This image is a 1/200 time slice (5 milliseconds), shot mid-stroke. Latency is virtually identical between all three devices and pen technologies, roughly 100 milliseconds (20 frames). Any comments on my methodology? Did I get the math right?