HK
Great question.When I was a kid the slogan for the Packard motor car was"ask the man that owns one".Would't it be great to learn from the experience of others.That said I have difficulty learning from my own mistakes.
I think that I would buy the newer model.The old model,two tone,carbon fiber.,looks great.
First let me clearly say that this is only one mans opinion.
There are two major aspects that I would consider;aesthetics and functionality.
The aesthetics of both pistols are great,fit ,finish,ergonomics,etc.So it comes down to a matter of personal choice.
For me just in the looks dept. it"s a toss up.
The second aspect,functionality is much stickier.
Number one question 'What is the gun to be user for?
For me the answer was self defense.
Yes---it fits in my pocket,points naturally,is lite,has the minimum power for self defense,etc.
The big question is WILL IT GO BANG when I pull the trigger.?
By now you can guess that I was one of the few that experienced reliability issues with the R9. With lots of work and help from the forum and the factory my pups problems have been resolved.
Back to the car analogy.My dad, bless his heart told me to never buy the first model year of a new car design"It will break your heart"buy it the second or third year,when the bugs are already worked out". Wise man.
I would buy the new stealth model because the factory has learned from our experience,new springs,lub,tolerance specs.
Also I think that the dark slide draws less light and that could offer some tactical advantage.
That said I'm very pleased with my old pup and wouldn't trade him for less shine.
Short question,long answer .
Jeff