Eh, well, I'm not going to be heard far on the air on AM at this point with just an FT-990. Maybe in the right conditions. But I wager it would work fine for, say, a DX-100 and be indistinguishable on the air from "true" ladder line. If I were running QRO, at whatever that level might be considered (375 watts carrier for 1500 PEP legal limit now?) I might arc the stuff or something. But I don't plan to do that, not with this, and while I may well go with the "true ladder line" when I re-run to a higher apex I don't really expect any difference. Other than, of course, people not calling my feedline crappy.