I don't know if you'll find speed difference between the slower ma lin carbon blades and the pg7, but it might still have caracteristics that you'd prefer.
Regarding maybe trying a different rubber for the backhand, I know cj8000 very well myself. On backhand I sometimes find it lacking power for harder shots. In matches I can get too tense because I'm trying to use more force. The throw angle can be a little too high for me sometimes and the opponent will attack.
I prefer fx-s on backhand. The throw is slightly lower and I get some higher gears. I find it slightly too soft though. El-s would have a similar feel.
I yet have to try Golden Tango PS on backhand. Throwangle is the same as cj8000 though. But I do get the extra higher gears.
If my recommendations are too expensive, then maybe the Ak47 series also from Palio could be and option? I still haven't tried one myself.
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