> Second, effort spent on sending practice helps reinforce receiving practice.
Perhaps to some extent, but I find that I can send with much more adeptness that the reverse. This (or its reverse) may be a common experience. I think time should be devoted to both, so I think we're in essential agreement.
> It's a hobby and should be fun!
Complete agreement, and how times change. After the Titanic went down, nautical authorities promptly required that radiotelegraph sets be installed on all large ocean-going vessels. Now Morse is a diversion, an interesting historical artifact.
Now, single-lever paddles, on the other hand... I've found them to be much more forgiving (at least with regards to my particular kind of klutziness) - I top out at some 17-18 wpm using iambics; single-lever, I can comfortably increase the speed by 10wpm (and still produce legible code! :))
Still no beating an old straight key for having fun, though. IMHO, of course.