Is it the glide angle that is worse now, or just the rate of descent? What speed are you flying?
Weight shouldn't degrade the glide angle; it just causes you to fly down the glide-slope faster (higher sink rate).
For an enclosed Series III with a 200-lb pilot, does anyone have data (manual or experimental) indicating what the best glide (shallowest glide angle) speed is?
What about speed for lowest sink rate (slower airspeed than above, but worse glide angle)?
Craig