Dear Community,
I have the latest version of the CS 737 Classic and installed it as an Administrator and with my AV off. I did one flight today, and discovered that the engines of the 737-300/400 are extremely powerful and the plane climbs like a rocket with a vertical speed of more than 4000 V/S and during descend the plane sometimes descends with a vertical speed with more than 3000 V/S. If those small VNAV climb and descend bugs get fixed, it is a nice plane. The FLCH change mode sometimes also makes the plane stall when climbing, as it tries to keep the speed, but fails when doing that and gets the plane rocketing up/down. In this situation the plane was fully loaded.

Regards,
Kevin