Hi All, I am new to X-Plane, not to simming though I have just purchased Skymaxx Pro V2, I had been running with HDR on with 8XSSAA+FXAA and 4X Anistropic. With these settings I locked the FPS at 30 with NI and every scenario was silky smooth. With Skymaxx I noticed some scenarios would drop the frames to the low to mid 20's and that would introduce some stuttering. I do understand that by introducing clouds the GPU will have a higher workload. I have still to experiment with the settings to find the sweetspot for my system but as a quick test I turned HDR off. Straight away I was back to a nice smooth sim. Should HDR be turned off when using Skymaxx Pro ? The funny thing is I couldn't see any discernible difference with it turned off Regards Richard