To be honest I was originally wanting to get a PA3X arranger, but the more I watched and listened to YouTube videos of the Kronos, the more it became evident to me that the Kronos just sounded better and actually had a whole lot more flexibility in what it could offer. Seriously, playing polkas using accompanying sounds of an accordian and saxophone for lead is just not what I have in mind to be playing. And I sure liked the idea of having those Karma generated arps to play with. About a year or so ago I bought a Roland BK-7m to use with my Kurzweil PC3 and I found that the backing tracks were perfectly fine with this combo in a plain vanilla sort of configuration. The arpeggiators on the Kurz were disappointing to me, so I never even bothered messing with them. Honestly, Karma was one of the real selling points to me looking at the Kronos. But I really wanted the backing tracks of an arranger as well.
So today I played around with integrating the BK-7m with my brand new Kronos and I was very pleased to find that I could get them to play together pretty well. The Karma patterns and drum tracks on the Kronos are fully synchronized with the backing tracks of the BK-7m. I'm just scratching the surface, but even my initial fumblings sound just outstanding to my untrained ears. I'm sure there are going to be some snags I just haven't uncovered yet, but at least now I feel pretty confident that it is POSSIBLE to get what I want. Which is, quite frankly, the best of both worlds with a combined arranger and a workstation. I honestly was going to be bummed out pretty badly had I found out this wasn't going to be possible to do.
Yeah, this might be old hat to you guys, as I'm a newbie with this stuff, but heck, I'm excited as all get out about this.....

So if anyone else has worked with this combo, and you wouldn't mind sharing some tips with me, I sure would appreciate it.