sorry to hear of your woes. i guess this is a case of ymmv
i've never had that issue,- so could not foresee it to warn of that possibility.
one thing i do is keep the ridgeline semi-limp as i center the tarp over the hammock- once the guylines are tensioned, everything tightens up and i don't
really need to mess with any of my lines much more once set.
i used to use wb guys stake tensioning method, until i was faced with snow and had to bury my stakes. for continuity, i saw grizz's 'prussik-at-the-tarp' method, and stick to it year round.
fwiw - i've actually found tensioning the ridgeline of the tarp itself more difficult with the single CRL. both use the same 'prussik' adjustment, and rely on slack at other connection points.
**side note--- i have experienced a cursing match with whoopies AND webbing that have been put under too much tension, and then need adjustment. i guess its the "point of no return"
sorry to be a root cause of flesh dismemberment - spirit not letter