Sorry not to get back to you sooner, been a little unplugged. On the little 2-3wt heads I simply used some short scraps with a fairly steep taper to make the heads. They were only about 8 ft long and we really didn't hardly ever shoot any line. I do enough monkeying with lines that I have thousands of feet of line scraps laying around so it's hard to say exactly what they were. The bigger thing was to tweak the leader taper so that it had nice turnover - still not a big deal. What also worked really well was to just put on a regular 4 or 5wt single hand line and only cast the first several feet (as long as it's not a line with a long, fine, front taper). If you're not casting very far or trying to shoot line a DT 5 or 6wt would work nicely.
PS. All of my comments above are related to spey casts, not OH.
I see you're a shvingger too!
Bruce and Walker North America - Pro Staff