Thanks a bunch to everyone who replied.
After several sleepless nights, I have decided to keep the RF5's, as well
as the RC35 and RS35's. After listening to several CD's, some of which
just didn't sound "good" with my previous JBL's, they all sound great now.
The height of the RC7 was the issue all along. Are you listening Klipsch?
In my case, 8.5" would have worked but 9" would not. Maybe in the future,
Klipsch will provide me with another center channel option that will also
be compatible with the 5's. Then I could consider replacing the center
and surrounds, and moving the RS35's to the rear (if I can figure a way to
get wires back there).
It sure was a whole lot simpler in the days of 2-channel . . .
Dave