NB,
not only have you advocated isolating at the hoop you went into some detail about it
"I eliminated most of my local TVI/RFI by using 1.25'' diameter solid fiberglass rod to isolate the mast 105" down from the mounting bracket on my Avanti AP, since the mast is the 1/4 wave counterpoise for this folded 3/4 wave GP. I used 5.5 turns of the coax on a 4" diameter former for the cmc choke around the fiberglass."
"That was many years ago, and the first time I tried a cmc choke. I saw no degradation in signal nor performance when I went to the isolated 1/4 wave mast, and I lived for the local DX. The farther - the better, without using F layer skip of course."
"When I get my AP back (it's still 165 miles away) I want to hang mine with rope ("in free-air") and pull the coax off at an horizontal with chokes, probably three or four CMC chokes, one about every 6'.
- But I've NEVER advocated a 1/4 wave mast."
i already told you i tested this idea, you are free to waste your time as you wish,
1/4wave masts on an astroplane don't work worth a crap nor will it work if you hang it from a tree with rope as you describe,
IM NOT GUESSING as you will discover, i hope you are man enough to come back on here to tell everybody i was correct 
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OH and yes, its a bt104.
