Has anyone using Jun's cam on there g20t before are they better then JWT's Cam...

cam(s)!! we have two of them. :D

you'll have to be more specific about which JUN and JWT cams you're referring to before you can get an accurate response.

Jun cams are pretty damn good, so you get what you pay for. However unless you can get them for around the same as JWT cams they are not worth the extra money IMO.