On Thursday, April 16, 2020 at 4:27:22 PM UTC-5, wrote:
New people always ask about release altitudes. The more relevant question is the rate of launches. We learn to fly and gain proficiency through repetition...

Twenty years ago, a friend and I achieved 6 auto-tow launches an hour, just him'n me. -- Blanik L-13, pattern tow, him a skilled pilot (land and stop in hookup position), turn the truck as soon as release felt, run fast with the rope ... and deserted airport on a summer evening.

Not achievable otherwise...
DJ