I thought I had solved my problem using a different driver for my gtx 970 with pauses using SMP v3 and live weather, but I have a feeling that I need a 12 gig card to get a smooth simulation when using SMP and live weather. 1st, I really love what SMP v3 does to the clouds, skies, etc. With a manual setting of weather the sim is silky smooth and I can control performance by reducing the visibility. The sim looks amazing. In NYC (with DD's NYC & NYC Airports) with default SMP v3 settings I have very little ram left, about 100 with fps in the 20s. The sim is still very smooth. When I try to run real weather, I get pauses when I fly to different areas or altitudes. This is occuring with both default weather engine and FSGRW (payware.) I've tried lowering settings and different drivers and still no success.