lines for you to try
I have the Orvis Wonderline in short head, medium head and long head in 9 and 10 weight. The Loop 14 footer had a short head and the Meiser had a 10 wt short head, but I'll be picking up a 10 wt versatip tomorrow and putting it on a spare spool. We can meet somewhere and you can try any or all of them on any rod you get that they fit.
Other than that, remember some of the sponsors of speypages will send you lines to try before you buy, which is what I'll be doing before I get another line.