I'd not heard of them being made illegal. AES Ham sells the original Avanti Super Penetrator in their catalog so I don't believe metal ground plane antenna's are illegal. Avanti (or whoever owns Avanti now) started making them again in the last year. I'm planning on picking one up and modifying it for use on 12/15/17/20 Meters.
I also don't know much about the CLR2 and its power handling capabilities. If it does in fact have a loading coil, the amount of power it can handle will be directly related to the gauge of wire used by the coil.
I have an original Starduster up on the roof which I use for 6/10/12/15 meters. Of course I have a good antenna tuner to tune it for those bands. Works quite well. I don't use 6 meters much so I'm going to replace the Starduster with the Super Penetrator above and modify it.
The advantage of the Super Penetrator over the Starduster is the Penetrator is a real 5/8 wave antenna, whereas the Starduster is a quarter wave over half-wave.
Well that's a relief - I just don't see how a fiberglass whip style would work as well (which seems to be what they are peddling for base stations nowadays).
Thanks for the chat - you got my blood up for it. I just called the guy and laid word on that bundle.