Before I ported my 16x20, it sounded amazing as well. But I don't like the trampoline action on the batter head so I ported it soon after, and then all that rumble was lost. It's all attack, no oomph.
I will be very curious to hear what it sounds like when you port it. I have not run the complete gamut of options yet though and I'm optimistic that I'll find the right batter/reso combo. So far I've only done the P3 and the Superkick II.
Your description of the toms singing more like guitar strings is quite accurate, haha. They absolutely sing! And yeah, I am equally as impressed with my 14FT. It's the best 14 floor I've ever played. And the 10" and 12" toms also get a perfect A+ score from me as well!
Just gotta figure out the right combo for this bass drum. I don't know if it's a 20" bass drum thing, or if it's this specific bass drum, but I find it's not as "easy" or "comfortable" to play as my 22x18" PDP MX or 22x14" Vistalite or 22x16" Tour Custom. Maybe it's the extreme attack that highlights every nuance of my playing? That could be it. I feel more confident playing the 22s.
I also have grindy tension rods, especially on the bass drum. I thought about putting some white lithium grease on them, but haven't gotten around to it. I'm quite wary of putting more than a tiny speck of grease on the rods because I don't want them to back out. Especially with how low I tune the bass drum. They're barely finger tight.