First off, not trying to sound snobbish, but it'd help if you use "Yammy speak" when you describe stuff on the RS. What you're referring to as a "burp' between tracks, that'd probably be a burp when switching "styles." I only say this to make sure I'm understanding you correctly... Yammy, as most manufacturers, have their own terminology and definitions thereof... Anyway, I suspect you're talking about switching betwixt styles... If you're actually having trouble switching between sections (which are part of a style), then it sounds like some other issue...
Anyway, a couple of things to note: The RS is more of a studio machine than a live box. Some of the way it operates just doesn't lend itself well to live use. I've taken mine out a few times now, but I have a feeling I'll go back to my 505 or similar for live control...
The sampler in the RS is not exactly a full-featured sampler. It definitely ain't no A series sampler... More similar to the SU700 really... I digress...
Sections work better than trying to do "multi-finger mutes," least for me, but I actually use the Mute and Scene Memory buttons to do a lot of the bits. You can "work a breakdown or whatnot" by doing some creative mute/scene work...
Adding even a small sampler to your RS setup lets you cover any potential "switching" moments, however, I really find that to be horseshit as you shouldn't have to worry about "covering up" Yammy's poor implementation on switching between styles and so on... There are certainly workarounds, like putting all your Program Changes and voice edit changes into the Phrases themselves as opposed to letting it get sorted via the Phrase Header info... However, as Yamaha has stated on some of the forums, their intention is a "studio box" with live "capability." Well it's "capable" but it certainly ain't the smoothest flowing MF I've ever used....
As to whether or not to sell it, that's your call obviously, but if you're wanting a spontaneous type of live set, there's better machines. The RS is a very linear inclined machine. Not to say you can't work in a non-linear fashion, it's just designed with linear in mind...
and your comment: "its just that if my live show adds no benefit over my statically recorded material then i am not sure why i am attempting it."..... welcome to the party.=) First off, when you say "benefit" whose benefit are you referring to? If you're really saying, "just hitting play on the sequencer and doing a few tweaks over the top is unsatisfying," well you've come to the right place.... Actually, that's the sort of thing that needs it's own thread....
All in all, the RS is a powerful machine. In my opinion, it ain't the best live box, but it ain't the worst, either. It's a complex mother, and it'll take some "quality time" spent with the machine to really sort it for live, but it can be done. Whether or not you want to devote that much time to the RS is something you'll have to decide based on your wants for the way you'd prefer to do a live set.... honestly, I'd say it's best suited (for live use) to folks who want to pretty much perform in a linear fashion, i.e., as a "playback" device with some extra bells and whistles thrown in for variation.... it "can" work in a more non-linear fashion, but it'll take more prep work to get your bits setup proper....
Peace