hello all looking for input between these 2 scanners which is the best way to go. rafioshack -197 or gre -600 are there any size diffrence in the screens between the gre or radioshack or same size does one have bigger text info tgid#s lettering. which is better buy gre for 450.00 or radioshack-399.00, screen size does matter any help and thoughtson this . thanks for youre help