I use FPS locked in P3D (26) and the FIBER_FRAME_TIME_FRACTION=0.01 (that's not up for debate that's just what works for me ) But I thought I would try after people keep saying its best to use an external one.   Well, firstly is there any technical reason why? I would like to fully understand why an external limiter is better than locked/FFTF 0.01. I Downloaded RTSS and removed FFTF (set FPS to unlimited within P3D) to try it but I ran into a problem right away. I run two scr