ICO Tec calls have very good reviews and do not cost 500.00.
GC500 - Programmable 185.00 from the factory.
GC350 - Programmable 135.00 from the factory.
I own the GC350 and it has worked out very well here in Michigan.
I don't have 40 kills but I have not been out 40 times this year yet. Today is 60 days I have been laid up Recovering from TKR.
Just installed 24 new sounds on a SD card yesterday.
Al