DONIC Acuda blue P3

Spin is good with P3, RB is just a bit too bouncy and needs a more precise contact to get the spin out, but is still OK.  I guess that the harder-sponged versions will be better for spinning the ball hard, with power.  I find it harder to get spin out of P3 than with JP03, for example, but you can play a flatter, more direct game with P3.  With plastic I find myself driving the ball more on my BH than looping these days so stability is becoming important to me.  I find there is less need to loop on that side now, and just smacking the ball is more effective.

Shark is another good one to think about - it also has that wafer-thin topsheet experience.  P3 and RB have better topsheet grip than Shark but both are slower, especially in the low gears.

These rubbers are more driving, hitting, blocking rubbers with enough grip built in to loop well (if not amazingly).  The softer you go (P1 - P2 - P3 - RB) the bouncier you get and the further away from loop performance you go IMO, but I guess about P2 and P1 at this point.  Shark is somewhere on the right of that scale, but for topsheet reasons.

I used Plastic and a Clipper CR, a medium feeling blade and a good benchmark I like to use, I have harder blades as well as softer ones that I use constantly but with this Acuda P Blue that was not even an option, I really hated it, for me this rubber might be only good for beginners or players that like buttery feel rubbers. Oh, almost forgot to inform you and this is important, I boost and applied 3 layers of TRF. Even when I got it out of the package (unboosted, no smell) I knew I was not going to like it, it was already too soft and this was the P2. I suppose the P3 melts itself. P1 might feel around Tenergy FX, I dunno and don't care anymore with this series of rubbers, not my cup of tea.  

Talking about a hard topsheet, Powergrip has a real hard one.

would say its softer then donic vario big slam

This is a bit tricky.  P3 is a lot softer than JP03 - sponge is softer, topsheet softer, adds up to a lot softer.  I'd have to say go with P2 - although it has a harder sponge than JP03, it has the same uber-soft topsheet and so overall feels a similar hardness to JP03, but with different characteristics.  P2 is definitely lower throw than JP03, and flips well, but be aware that it's more of a blocking/hitting experience than looping.  I have to add that warning to the end because this new generation of ESN are quite different to the last, and it could come as a shock.