T5collars

Just sold my 220 and 30 collars and stepped up to the big boy system. Got a 320 and T5 collars on the way. What type of range are you guys getting out of the t5 and 320 combo and do you like the T5 better than the dc50? My understanding is the only difference is the T5 doesn't have the bark detection in order to comply with certain contest rules. Is this correct? Also has anyone bought Garmin stuff from usedgarmincollars.com , I think it's the same guys as southern cross cut gear . I paid $330 for 320 and $205 for T5 collar