No question about it, neither Source Engineerings Comfort Control Valves, or Super Steers Motion Control Valves - are 'active' air systems
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When we first bought our coach, I made a series of changes over about a 6 week period. After each change, I'd drive the same roadway from San Diego out to Borrego Springs, taking a back way out of Julian that includes many "S" curves, with less then constant camber. Some of the curves you exit leaning into the curve (As you'd want to.), and then as you exit into the opposite direction curve, the camber would remain the same, and you find yourself leaning towards the outside of the curve (Which is not ideal.).
A forty foot coach, even though much lighter then say a Magna/Affinity coach of the same length - is not ever going to be a 'pocket rocket'
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I made one drive as it was when I bought the coach suspension wise (Well, I did have new Michelin XZE*'s installed in all 8 positions.). This included the Koni Adjustable SP1 shock, set to the highest setting when I bough the coach. This was a very slow, and less then comfortable ride.
The next change was to Road Kings (The older 2 1/2" diameter shocks.) on all positions. This helped quite a bit. Sure, still not carving up canyons - but never intended to in a 40' DP
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Then I had the Super Steer Motion Control's Units installed, and the next weekend repeated the drive. (Had to do it twice, as the first time where I usually did the same about 1/2 miles of comparison, I had a long group of bicyclists sharing the road with me.). Not near as dramatic a change as from the Koni Adjustable SP1's to the Road King's. But definitely the suspension 'set' faster, as the S curves would shift the weight from one side, then to the next side, etc.
While I have driven this same road about 2 1/2 years later after the install of the Source Engineering Comfort Control Valves - it was too long for any direct comparison's. But frankly, just the traveling before and then directly after the install of the SE CCV's in Oregon, did not reflect any change in how the suspension seemed to 'set'. They both 'restrict' air flow. And while the SS MCU's restrict the flow both to, and from, the air bag... The SE CCV's restrict in only one direction, the, so as to not add any chance of additional road harshness transfer by 'stiffening' the air bag over say a road impact to that axle/bag.
Worth? Well the much more expensive Road Kings, provided the largest improvement in handling for our coach. Cost to improvement in handling and poise, I felt it was a good investment. The SS MCU's and SE CCV's cost quite a bit less, and also improved the handling/poise much less dramatically too.
But I look at the cumulative effect of overall handling, and any edge on an emergency maneuver with a more settled/poised/responsive suspension - I feel adds to our safety edge. And we had planned to own and drive the coach for a 10-15 year period, so the costs were going to be amortized out over that period of time. So worth, well, I paid for the changes...
I've been asked before, if I felt if I had not had the Road Kings - if I felt I might have seen more of a gain on handling from only the Check Valves? It's a fair question, and I think yes. But still not near as much as the Road Kings added.
Now if I had the budget, HWH Active Air would IMO provide not only the greatest possible improvements in emergency maneuvering. But, from talking with and reading from those who have had it installed - I believe the quality of our normal travels would have improved. One of the DW's biggest complaints about our travels, is how the coach seems to lean towards the outside curves when doing mountains driving. She hates the sensation of the coach seeming to lean, just before the suspension 'sets'... HWH Active Air is reported to greatly reduce this sensation...
Lots of options on enhancements at different price points, and no right or wrong. And I think we all know many owner's who drive and enjoy their coaches as delivered from the OEM builder...
Whatever floats your boat, and gets you to open your wallets!!!
Best to all,
Smitty
(And note: I gave the abbreviated story on some of our changes. As I also was adjusting tire PSI, and one of the trips I also set the OEM Rear Drive and Tag shocks from the lower to the highest setting too. But none of those, well the 'turn in' responsiveness was better when the front tires are set per actual four corners weight. But also, the tires had had a few more hundred miles on them from each trip, and tires do need to sort of break in. A new set, will feel different, after say 500-1000 miles of usage...)
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