Growing and Shrinking quickly, or slowly?

Some of My callers like the size change to be slow and gradual, while others like the change to be quick and dramatic. I prefer to grow slowly, but to an incredible height, 1000's of feet tall.
The call depends on your preferences however, unless I take control and just shoot up, towering above you!
I have added the comment feature now, so please let Me know if you are a slow shrinker, or 'poof', you are tiny!

Giantess Cassie