I havent but Mr Cebik talks about it on his website;

http://www.cebik.com/vhf/jp4.html

Cheers Bob VK2YQA

wrote:

Anyone ever get around the VHF FM vertical yagi feedline routing
problem by voltage feeding the bottom of the driven element with a stub
like a J-pole? A quick EZNEC run seems to indicate that it's not a bad
idea.