IB, look up this thread a couple of posts and you'll see a web connect with pictures of a couple of 'Otis Bugs.'

Actually, you can be quite sucessfull winter fly fishing, but the fish are not as actively feeding as summer runs. That's not as much an issue as water temperature. Below 45'ish degrees the fish start to get fairly 'dour' so running your fly as deep AND slowly as possible is 'the key.'

As the upper Rogue flow right now is quite low I'm using XLT lines, 15-18 foot leaders and dry lining the runs. If the water is faster/deeper I'll put on a RIO or Airflo extra fast sinking leader.
These are also run off the end of a dry line.

The 'set up' for these is to run a 3-4 foot shot of 20-25 # Maxima main line as a 'butt section' off the end of the dry line. Loop and connect the sinking leader and run a 2-3 foot section of 8-10# maxima main line as 'tippet' material.

Sounds like it would be a twit to cast but with a 8 or 9wt Spey rod it launchs like a rocket. The dry line allows you to stack mend and hold/control the sinking portion of the 'leader' extreamly well. Far easier than with a sinking tip.
fae