[TenTec] INRAD ROOFING FILTER & AUDIO MOD FOR OMNI VI

[BILL GREEN]

Has anyone added the INRAD roofing filter and audio mod to
their Omni VI and if so, does it make a worth while addition
especially in working weak signal cw dx.   
Can the filter be switched in and out for comparison or is it a
hard wire installation.   I'm thinking of buying a Omni VI+ and
want to know if the filter really improves ability to copy weak
signals in a dx pileup.
            Thanks & 73,  Bill Green - W5HTG