Yep, almost exactly. Best glide in a t-craft is going to be about 65 mph, give or take. It's a better-than-average glider, and with the prop stopped should be able to get close to 10:1 (although I surely wouldn't plan on it); so vertical speed is about 6.5 mph, or ~575 fpm. If you're optimizing for time in the air (loiter) instead of glide distance you can pull it a bit slower than best glide -- Vx is about 57 mph, which at 10:1 (you'll get a bit less below best glide, but not much less) would be 500 fpm.