I'll be headed to Washington in a week (wahoo!) and plan to fish the lakes near Ephrata before the fish-in, then see all y'all at Rocky Ford creek. I've got a question about "Fly-fishing only" waters in Washington -- the regs from last year (all I have available right now) state that:

"other line may be used for backing or leader if attached to at least 25 feet of fly line," and that
"Anglers may not use ... weight attached to the leader or line."

Does that forbid sinking tip fly line?
How about a 8-10 foot sinking tip that I add with braided loops or a nail knot, between fly line and leader?
And how about a short sinking tip made from very heavy weighted line (about 2 feet of it) between fly line and leader? I use that rig a lot for float tubing lakes.

Thanks in advance -- getting packed for the trip, and need to know what I can rig up. One of the lakes I'll be at during the trip (Pass Lake near Anacortes) is listed as "fly-fishing only."

DANBOB