until recently I only had Lionel command engines. I decided to buy a PS3 standard gauge engine for a tree layout. Now I am thinking of getting a TIU and WIU(wifi), and using my IPad for control, but not getting the handheld unit. Any reason to not go this route, thoughts? I already have legacy and Lionel wifi and feel I don't need another remote to use/keep track of.
Thanks
Bill