While the Audio Technical AT150MLX costs less than many of the carts under discussion, (currently about $325 at lpgear), it is an excellent cartridge on several fronts, quick and responsive, yet has a nice full-bodied sound.
Two things to make it work well in your rig: you should probably add a headshell weight to get a better arm weight/compliance match as the AT150MLX has a lower compliance than the V15. Second, the AT150MLX likes to see a 100-200 pF capacitive load. If your Cronus isn't configurable for that, then you need to choose some interconnects that have 100-200 (ideally 150) pF capacitance. That rules out your current Blue Jeans.
Anyway, I've been living with an AT150MLX for 3-1/2 years and still love it like I did when it first broke in. I've upgraded everything downstream a few times (including cabling) and each time revealed how much better the cartridge is than I first realized.
It's finally getting noticed in the high end press; Abso!ute Sound named it Cartridge of the Year for 2011.
Also, I get great results with this
heavy butcher block cutting board, isolated from above and below. It's just an opinion at this point, but I think maple does a better job of absorbing vibrations than Corian. I have a friend with a Music Hall turntable (made in same factory as Pro-Ject) who also uses one of these with excellent results.