Welcome! Actually, I'm currently waiting for the Culture Vulture to arrive:). I'm expecting it to sound somewhat rougher than the Overstayer. Hope to post a demo of the Vulture in the coming weeks.
Hello , i have overstayer and culture vulture. CV is one of the best tube saturator out there, but one or two sounds! thats it! You can do some variations with the help of tube bias, but thats all. Overstayer is a swiss army for more sources. The Shape 3 (3d harmonics) in a good combination with saturator button and proper GAIN in signal ... (here is the secret at the gain stage!) do amazing things. Depth and headroom .. one of my best gear at my studio! ...
I don't own Karakter, but if I listen to demos on RU-vid it seems that Saturator can be a bit rougher and explosive sounding tham Karakter. And it has a hipass filter. M/S is a great option on the Elysia though. Much it is about taste of course