Thought I'd post a quick follow-up.
Initially I ordered the FW-1B product from G9Chon's web site:
G9Chon - FW-1B
May be a fine product but I ordered it by mistake. I thought "FW" stood for "FlashWave". And since the FW-1 is numbered "1" and the other product on their site is numbered "2", I thought I was ordering the first version of the FlashWave product. Wrong on both counts.
The FW-1B is NOT a "FlashWave." The FW-1B is (apparently) a new product, designed to be less expensive than the FlashWave line of products. Again, the FW-1B may be a fine product, but I would not know because I wasn't able to use it. It does not come with a hot-shoe adapter, so I wasn't able to connect the receivers to either my Pentax 540 FGZ or my Metz 58 AF1.
I hope this report of my experience keeps somebody else from making the same mistake I made.
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The folks at G9Chon told me I could buy hot shoe adapters for the receivers but that was going to cut into the price advantage of the FW-1B products and then I'd have something not as easy to use or as powerful as the FlashWaves were supposed to be. So I sent the FW-1B stuff back (and paid not only $10 to ship it back but also the 15% restocking fee) and ordered the FlashWave 2 product. I bought 1 transmitter and 2 receivers.
The FlashWave 2 stuff arrived on the weekend. I just got a few minutes to open up one package, put the transmitter on my K20D and attached my Metz 58 AF1 to one of the receivers, using the built-in hot shoe connector.
Result? In about 2 minutes (seriously) I was able to take a photo of my living room with the flash off camera and controlled by the radio trigger. I don't see how it could be much easier. Color me pleased.
No review here: I've only taken a couple of quick photos, just to make sure things work.
Thanks to those who have helped me get here.
Will