Ultramatic Shifting Question

Posted by casey rog On 2012/7/22 10:41:04

In the current issue of the Packard Cormorant, there is an article regarding the demise of the Packard Co. At the end of the article the author describes how he would start the car in low, get up to 25 miles per hour, let off the gas, and then shift into high. Is this a recommended practice, or will it cause damage to the clutches or other parts?
Thanks in advance