Harry: I am NOT an expert in anything.
My OPINION comes from the following: In about 1992, Newmar first introduced their slides in Miami at a trade show and just about turned the RV industry upside down. Most of the other manufacturers hadn't thought much about the engineering side of slides and rushed their products to the marketplace with expected results.
In the summers, I help out Hitman Frank, well actually hand him tools, at an RV dealership in Maine. He spends a great deal of the customer's money fixing slides. I have seen (non-Prevost) coaches with stress cracks across the entire sides of coaches from the lack of proper framing, leaks, seal problems, drive mechanism problems, adjustment issues, you name it.
Met a guy this summer who had a Monaco Executive, big bucks, with quad slides. Every time he put them out it would crack all the tile up the center of the coach, due to the outbound weigh. After the 3rd patch job on the tile, he had them strip out all the tile. Turns out that in manufacturing the company hadn't screwed the center pieces of plywood down at all. He had them to that and bought a non-slide Prevost.
Slides are not just about the mechanism or the room you get or don't get from a mechanical point of view. Putting slides into a coach, especially a big one from what I have seen, really alters the basic structure of a coach and I don't like the idea of simply punching a hole in a well-engineered shell and putting in a 24-inch 'room' to gain a bit of additional space. There are more consequences to that than may appear on the surface.
Prevost was very late to the game in slides, by their own admission. The company has reworked version 1 and perhaps version 2 by now and they are getting much better. Now the company is about 90% focused on integrating the new engine and EGR issues, so what you see now is likely to be in coaches for the foreseeable future.
Our camper is pretty much at the end of the line of almost 30 years of tweaking this and that to make it pretty reliable. Hopefully those who like slides and want them will have terrific success with them and be very happy with their choices.
I ain't ready yet to make that leap of faith from what I have seen.
Of course, I am also too cheap, so maybe that makes a difference too.
Why is it that I feel like Jon is writing this? (He would have used bigger words and talked about greasy wrenches and tempered chrome-plated flatulators or something tho).
To answer your question.
I dunno