when converted to B&W they look like regular B&W shots
What are you taking photos of? Of some things, near-IR looks pretty similar to normal B&W, and that could be fooling you if you're not sure what to look for. Vegetation and turbulent water should look very pale; blue skies should look very dark. Things in the sun should look paler than things in the shade (relative to normal B&W). Vegetation is the surest thing to photograph to see if it's working right; it should be very pale.