I stored the Signia for the moment - I can't have two playable kits in my room. I must must say, the Renown is definitely growing on me. The sound is mellower and longer than the Premier. It's a pleasure to play ; I generally don't like much the 10" toms, the Premier is lower but drier than the 10" of the Renown, and the Renown is a joy to strike with a long sustain, a nice ring. The BD isn't equipped with the same skin as the Signia, it's an Emad, it's drier, and it's sounds good too.
I changed the straps of the snare drum, for string, it's then a tad more sensitive, and the sound of this snare is really something I dig. The Renown is less aggressive, ballsy, with a nice ring yet controllable. I should get rid of the plastic washers also.
I first didn't plan to keep this kit, but now, I must say, it's a well made kit, with a beautiful sound, warm and rich with a perfect snare drum.