For FSX I used to use 2 separate HDD's. 1 for FSX and most addon's and 1 dedicated for mesh (FS Global 2010) and some photo scenery. Though being that 1 HDD would be strained too much to provide all data at a time.

For P3D until now I use the same philosophy. However I'm at the verge of upgrading my system, including an SSD.

I am wondering if P3D would benefit in any way if again I would spread P3D and mesh over 2 separate drives.

Basically I either put 2 SSD's in my system (1 for Windows + regular programs and 1 for P3D + addon's) or 3 SSD's meaning an additional one for mesh + photo.

Needless to say I'd prefer not to spend money on additional SSD's if I don't have to.

Any opinions and views on this matter are appreciated.

I'm an FSX'er, but I used to run my set up similar to yours.  SSD for OS, another SSD for FSX and an External for add ons.

 

I've recently changed to a single SSD (os, fsx, add ons) and there's no difference in performance.

+1 for single SSD.  I have not had any issues.

Good simming!

Ron

Yep, go for the single SSD.

I've been running P3D31 on a dedicated SSD and found it convenient to monitor addons and available space and it seems to run just a little better, I also have FSX Steam on the C drive has my Win7 install. In answer to you question I would say go for the single SSD.