Hi! Ive been wanting to get this adware for quite some time now, but I am afraid I am not able to due to lack of adequate computer power. Can anyone here with a similar system to mine (see under) give me some feedback as to how these new clouds hit the framerate? Will I be able to run this when I am struggling with fps even at fairly low (at least far from high) settings? My system: iMac 27" late -2013, bought in october of 2014. 16 GB system ram, 512 GB SSD GPU: nVidia gtx 775m 2 GB VRAM CPU: i5 xPlane setings (from memory): Texture resolution: Extreme (loads 1600 MB off of my 2000 MB video card) Screen resolution : Full screen (2560 x 1440) Objects : Tons Trees : Populated Roads : 2nd or 3rd options (default or lots or something like that..) Traffic : Siberian or the one after that. HDR : ON, with FXAA + SSAA (lowest setting where both are on) Airport detail : Default Anisotropic filter : 2x Shadow detail : Global (low) World detail distance: High. Cloud puffs : 10 % (this also significantly affects fps, must harder imo. than the other options mentioned above). Avarage FPS with these settings: 22-28. Sometimes changing either the traffic,roads trees (cpu) changes fps somewhat, other times it has nothing to say if I put all these at max or lowest, i still only get 20-25 fps. I also lower HDR from fxaa+saa till ony fxaa, sometimes it makes things a little better, other times it does nada. I never get more than 28-30 fps, usually 25-27. At airports, 18-24. What I have found to have the biggets inpact on fps, is weather visibility. at 10-20 miles, I get fps more than 30. At 40-50, fps is 15-20. Also when lots of default xplane clouds appear, fps drops significantly... Q1: Will I be able to use these SkyMaxx pro clouds? Q2: Does anyone out there have the similar iMac as I do, and could you please tell me if you are using these skies, and what your settings (xplane) are? Q3: Is there a "demo/trial" I can test before I buy, or do I get a refund if I am unable to use this adware? Q4: I see that xPlane uses between 1400 - 1800 MBram (seen at the bottom of the rendering settings window) wen I have "extreme" texture resolution activated. Since I have a 2 GB VRAM card, does this automatically mean that Im good? What if i have other apps running in the background? Say xPlane outputs 1700 Mb VRAM used, and my other apps in the background uses 500 Mb, this means im above 2000 and may I then suffer a major fps hit due to lack of vram? Thank you very much!!! =)