How to remove the bushings from an "A" (lower control) arms without drama.

When rebuilding the front suspension "A" arms on a 993 removing the old bushings can be a real bear of a job. Traditionally a hack saw is used to cut through the bushing's outer tube that is pressed into the "A" arm casting. Then I ran across this approach, using a puller to remove the  "A" arm bushings. I wonder why I never came across this before? 

Here is the video:

https://www.facebook.com/reel/211727354790398