Hey Arch,
So, I probably worded it badly before, I'll try and explain.
It's not a case of "modern rubber" vs "old rubber" - The characteristics of Chinese rubbers are:
• Tacky/Spinny
• Hard (you can really feel the ball on the blade much more than a EUR/JAP rubber)
• Fast when hit with a lot of power
Now, these things are great, if you have a "Chinese" style of play - By that, I mean....
• Good footwork to get yourself into position to play aggressive shots
• Full use of the body, from feet to hips to arm, to generate the power and spin
The reason why "historically" the Chinese have played with Hurricane3 on their forehand, and a Tenergy version on their backhand, is because they couldn't generate the speed with the flick of the wrist (backhand), when using Hurricane, compared with Tenergy.
I also don't think it's a case of "doing so much for you", despite the fact I kind of implied that in my last post - However, if you have more of a European style of play, European rubbers will help when compared with Chinese rubbers.
For me for example, if I used Hurricane3 on my forehand, I'd have to adapt my stroke, and not disappear from the table as much as I do (I can still generate power and spin from far behind the table with Tenergy, I wouldn't be able to do that with Hurricane3).
I was going to record a video, but I don't have the time.
Basically..... If you had 2 identical bats, one with hurricane, and 1 with Tenergy on, and you laid them on a flat surface.
When bouncing a ball from the same height, the Hurricane would bounce very low, and probably only 2/3/4 times, the Tenergy would look like a trampoline, and bounce 6/7/8 times.
Imagine that on a forehand, and all of a sudden, if you are out of position, or you've been cramped for time/space, you can still get a shot away which is powerful and spinny.
If you are rushed for time with Hurricane3, or your stroke isn't full bodied..... You won't have the same impact.
Unless you are being coached by someone who recommends a Chinese tacky rubber (and you live anywhere but China), I'd recommend using a Euro/JAP rubber on both sides.
I'm sure others will argue differently - I'm purely basing my opinion on the amount I've played in the UK, and the different set ups I've seen - Very few are successful with Chinese rubbers.