I never considered you a Yamaha "hater" or basher, although there are a few here on the forum...but that's their problem not mine.
I am a Yamaha person because love the sound, the OS and the third party support.
I will use other brands if I feel they will meet my needs...but, I just would not toss away my money just to say I have a Roland, or a Korg or whatever.
I am choosing a Bose PA over a Yamaha system, I have also used other brand keyboard/arrangers in the past, when they were the best I could find for my needs...I was a big supporter of the Roland E-series for quite some time, including being a clinician and demonstrator for several years.
So, it's not like I am solely and fanatically connected to Yamaha...I just feel their arrangers suit my needs much better than the competition.
You don't have to like my method of posting, but it is far less confrontational than yours...you seem to have a chip on your shoulder, but you know what they say IF that be the case...it might be a sign of wood higher up.

I don't pussy foot around, Squeak...I'm just more polite and diplomatic than what you're used to.
But, that's what makes this forum so entertaining, Squeak...people like you, always make me smile.

So...you don't have a Roland arranger, nor do you sound like you're interested in getting one....so basically, you are not presently an arranger player....no big deal, but I'm glad that's cleared up.
I figured an accomplished player like yourself would have the best of arrangers, be it a Roland, Korg or Yamaha sitting in the studio.
And by the way, my opinions about Roland arrangers are my personal opinions...if you don't like them, that's not my problem.
You can disagree, but that's about all you can do...they are every bit as valid to me, as your opinions are to you.
Is that direct enough for you?
Ian