I hear you, but stihl is a german last name. And the traditional way to pronounce it is "schteal" Remember, the proper way to pronounce something is how the people where it originated do.
I am showing the proper german way of saying it. It may not be the american way, but it is the original way.
Hard to say original. You would have to look up the originans of the name.
And if the family is in northern or southern Germany.
Even the word "two" is pronounced differently in different parts of Germany.
The only real reason for language is to woo women.
Otherwise men would just grunt and point.