Does anyone have experience with maxing out the length of their diy tensa poles?

Anybody experience failure on 3/4 emt at any particular length.

I may be asking a question that has already been answered, but in my searching I haven't found it.

I see the results vary from under 8ft to 9ft 6inch.

Is there any reason I can't leave mine a full ten feet?

Any help is greatly appreciated and kudos to all of the great threads that have been created showing how to diy a tensa.

Latherdome, you are awesome for supporting the diy aspect of your clever product!