mauriat 66r

I'm trying to decide if I want to keep this P. Mauriat 66R. What's your opinion of horn "A" (Mark VI) vs horn "B" (66R)? What differences do you hear? https://streamable.com/lo8af

I never post links to videos on SOTW but this just had to be posted...This cat is super smokin...I think he endorses Mauriat horns--He's from Russia. All I have to say is...damn. Makes me wanna buy a Mauriat horn...