Which MarkBass Combo?

I thought that I had settled on the MarkBass CMD 102P IV combo, but I see that there are some new models out and the MB58R 102 P is really interesting. They seem really similar, and I can't seem to decide. The spec seems similar, but there's a $100 difference. I like the wedge design of the older model, but I'm not necessarily married to it. Does anyone have any experience comparing these two?

Thanks.