Posted for <bjburr@mwheli.com>:

 John,

<<<
 4)  Would you choose Garmin SL 30's or 40's and why?

 4. The Garmin SL30 will allow for the selection of frequencies
 directly from the Chelton.  The SL40 will not.
 
Is that a true statement?  I guess I've never asked, but I thought the
Cheltons would control either the SL30 or the SL40?

I guess I'll go ask the source :)

Alan