What one perceives as high compression either does not know what high compression is or the car that has it isnt driven all the time....
...............and one should actually inquire someone smarter then them to build a proper exhaust system to stop them from making that mistake to begin with. JMHO!
Hey now....play nice
I've been around cars since I was born, helping my Dad work on them since I could walk. 47 years in all. But no matter my "level" of experience, there is always something to be gained or appreciated from other peoples experiences. And there are a lot of guys here who have been doing this for longer than I've been alive. I try to appreciate everyones opinion, and they're all different. That's whats so cool about cars, you build them the way YOU want, not what somebody else says it should be. I'm usually outside the norm. It's just my nature.
Ah, muffler threads...always end up with people's choices being called into question, harsh words and hurt feelings. T'was ever thus. 
I guess this isn't the place to say that, as a someone early-on raised on the old Thrush glasspaks, for the last 20 years I've been a happy Flowmaster customer.
But then again, as others have said previously, it's an extremely subjective topic.
I do LOVE the sound of the FE.
Exhaust choice is definitely subjective. But I have never heard an FE I didn't like
That's why I like the YouTube videos. Great for listening to different combinations and deciding what you like for yourself. They are an excellent helpmate in deciding for yourself.
I also like the old glasspack sound, as well as Flowmaster (and they're about as different as you can get). My Flowmaster 40s that I've had for the last 10 years sounded good to me, but in my case they droned pretty badly. Some systems don't. My pipes stop at the rear axle though and that made it much worse.
But I still say, without a doubt, that the best sounding systems are open headers
