I play iRacing, DR 2.0, and RBR mostly.
I promise you that I will give the D-Box haptics a going through. I'm hoping that I can use some of those effects and that some of them offer an improvement over tactile.
However, based on the feedback I've gotten from other D-Box users who added Race Bass tactile systems after the fact, the D-Box haptic engine effect doesn't compare well. I haven't gotten a blow by blow on all the other effects.
So I'm not expecting that I'll be able to keep the haptic engine effect now that I've been spoiled by what that can be. If you read the other motion thread. One D-Box user was complaining of the lack of control over the D-Box Haptic gear shift effect. I can tell you that I currently have 5 different gear shift effects to pick from and like a real car the upshift and downshift feel different and are optimized and spread out over multiple transducers. To be fair this particular complaint sounds like a bug that D-Box may fix in a future release.
As far as being able to feel multiple effects in tactile that depends on having a wide range of frequencies and multiple transducers to spread the effects over.
I currently get a very strong sensation of speed, RPM, rumble strips, gear shifts road texture etc.
I'll evaluate each effect individually between the systems and happily point out where each shines. I'm sure the D-Box system has some effects that work well. My intent is not to trash their efforts at haptics. I will leverage anything they can give me that works well or is better than what I have.
I also don't consider either tactile or what D-Box comes up with to be in final form. I'm sure that D-Box will improve things over time and I'm sure tactile effects will get better. This is all good!