Eric,

I have flown with with both SYM and WinPilot. The 3D graphic, auto start and sound are much better in WP than SYM. I wish SYM would offer a near duplicate of WP climb maximizer. Right now SYM takes two turns to start where WP starts after about 90 degrees. WP's graphic is much better in weak conditions. I have tried both of SYM option, both work OK, but why make so so software when there is better examples out there?

The history graph is extremely helpful. It provides a quick glance at the history to tell if the thermal is maintaining strength or slowly getting weaker. In thermals that are hard to really core you get a sinusoidal curve that helps to decide if you can adjust to find the core or leave the thermal. Again, SYM should add this as an option.