Yeah, old hootie is fallin down on the job.
When I had a canvas T-top I strung heavy mono as bird wire in a star pattern. It worked like a charm, but I can't bring myself to drill holes in my hard top. On the canvas i just used plastic bolts and nuts up thru the gromets and drilled holes in the nuts to run the mono thru them. ( Now that I think about it, that sounds like what an old fishing buddy's wife did to him after he married her)