Captains, In the days since release of the Hot Start Challenger 650 there have been concerns that Gizmo and even the Challenger 650 plugins were causing a major performance impact. We went investigating this, and even got Laminar Research involved to understand what was happening under the hood of X-Plane to try and sort this out. As it turns out, Gizmo is NOT the source of problems, and neither is the 650 plugin; not directly, anyhow. What's happening is somewhat complicated, but I'll