Geeze! Heavy clear full-sink? That may be something that doesn't even exist! Ha, Ha, a vertical clear line? How about a very long straaight leader of some 4# fluoro with a heavy BH chironomid, and a lot of patience? I do have an old 6 wt Airflo clear intermediate that I ran over with my old sq-stern canoe and wound it up in my trolling motor. I had to cut and splice it, and it turned out that the tip section was trashed. Coincidentally, the belly/running line on my Airflo 6 wt multi-tip suffered a similar fate. To resolve this untenable situation, I am using all the sinking tips from the old multi-tip line with the old "body" of the clear intermediate full-sink. So I can now attach, via braided loops, either a type-3 or a type-6 10' sinktip on the clear intermediate mainline, as well as the clear tip. I haven't really experimented with this thing enough yet to comment on how well it actually works, though. I have finally extricated my sorry arse from the jungle known as "landscape maintenance servitude." I'm so happy that I've even been trading the last of my good customers away to the competition for only the promise of keeping up great service! I am, after all, getting paid with more fishing time. The old floating tip from the 6 wt Airflo multi-tip set-up just might go on a 6 wt clear-int sink-tip that I have, if I ever raise the courage to hack and loop it.