True Bracket Car vs True Street Car....

I`m thinking about getting a built convertor , big $$ for me , and the 3500 hughs I`ve got works so well , but wonder what I`m leavin on the table .
dynamic , and what are the two others -----------?>?
Lenny @ Ultimate
In Pa., Pro Torque @ https://protorque.com/

I heard good things about PTC. Never had them personally.