The Nikon AR-3 has a long throw, plenty of threads and is the only cable release I use anymore. It has never let me down and is worth the premium price. The new AR-3 has a plastic shaft by the plunger, but seems to be otherwise the same.
This is all about complicated but the folks here are super helpful and knowledgeable. I am constantly finding new problems to work after I've gotten through the weeks issues. It just seems to be one thing after another, for example I hadn't noticed how un-level my camera was till I posted a shot here about something else. I just finished scrimming it to level, now onto the next issue. But it's fun and rewarding to see those big negs, just remember, if it were easy everyone would be doing it.
And auto-focus still goes better with Jack Daniels.
edit: Sometimes AR-2's are listed as AR-3's so always check the tip.