Hi,
I have been using a Chonda with the simple Red Victa boot and a self tapper screwed into the Chonda wire for many years. Goes very well, nobody has complained about TV interference or anything like that. This is a engine swap on a Rover Regal 19 frame. Had to put the Chonda on sideways and found that the rigid plug boot broke very easily against brick walls etc.No problem with the rubber boot at all.
All the best
Jeff.