I am by no means knocking HardBat TableTennis whilce it lasted ( I don't want Berndt to go ballistic on me)  but one of the biggest advantages of sponge domain TableTennis over hardbat is that sponge domain TableTennis allows for individual style enhancement where each TableTennis player with his or her own unique style can design their racket with different rubbers on backhand and forehand and backhand to match their unique playing style

Examples : - 

A PowerLooper on ForeHand and SoftLooper on backhand can choose rubbers with different sponges & TopSheets 

A hitter on forehand & looper on backhand of course can choose ShortPips on ForeHand & reversed rubber for backhand 

A chopper can use cLongPips on BackHand & reversed rubber on ForeHand 

 etc etc etc etc etc.

          But these choices are unfortunately limited to the rubber level and at the blade level SHOCKINGLY, very few blades are available from MAJOR manufacturers like Butterfly, Stiga, Tibhar , Joola etc or even from minor manufacturers.  

     Manufacturers use all sorts of marketing gimmicks to differentiate their blades from even within their own product lines  let alone with competing manufacturers. But they have not fully exploited this simple concept that most humans  have different BackHand & ForeHand (styles). This at the very worst is definitely a more real and more exploitable marketing variation than fake gimmicks lies (such as very one of tehir blades can do it ALL)  

           Yes there a re a few blades available here and there from manufacturers (but this are seems to be limited to custom blade-makers) but it blows my mind when a major manufacturer like Butterfly or Stiga does not make a single blade that has different forehand and backhand behavior ?   Am I missing something major here ?  Yes I understand that the design of such blades could be a bit more complex than simple blades with same BackHand & ForeHand but this is a real issue form most players (humans) than stupid marketing gimmicks to differentiate their products. 

     Looks to me like Butterfly Stiga etc are either woefully short-sighted in identifying these differences in human (playing styles on BackHand & ForeHand) or they are limiting themselves professional players only. If  you are non-professional player ask Butterfly or Stiga to make a custom blade they would essentially tell you to go F yourself , but if a professional player asks it would be ready in 10 minutes, but the vast market is not the few professional players

     As an example, most defensive blades by Butterfly etc are pieces of pure crap to me because I simply cannot comprehend the idea of having a composite material like carbon on the chopping side (given that these stupid rackets have identical ForeHand & BackHand layer composition). Yes I have heard from almost all custom blade-makers about the difficulty of isolating the carbon effect from propagating to the non-carbon defensive (chopping) side but some blades have been achieved but major manufacturers with their superior design & testing resources can do far better. This goes to any blade design with very different ForeHand & BackHand layer composition.

Giant Dragon made Chris model with different ForeHand & BackHand and then Chris Carbon with carbon only on one side. But they discontinued this model as they made only a few 100 it seems & I cannot get my hands on one. I then had to modify Giant Carbon Super Balsa 2 putting carbon & another layer wood on top & this is my favorite blade. I gave one of these these blade away to a 1900 player and he is playing like 2200 now & he sold away all his other blades LOL . I only have one modified SuperBalsa 2 now and I cannot find any SuperBalsa 2 either from Giant Dragon. I think giant Dragon could easily sell more 10000 pieces of Chris Carbon (half of them to EJs) but they don't make any anymore of this model  & this blows my mind.

One may claim that you can achieve the style variations by varying the rubber (top-sheet & sponge) but in some cases like above defensive blades it is very difficult. You can design a racket much better to match your style with a suitable blade FISRT more than with rubber 

Whatever

Now let us not start childish arguments that it is all in your proper technique & a professional player can play with a frozen fish (or clipboard) & beat you blah blah blah 

Yes proper technique is critical but proper racket to start with is paramount especially for a player still improving(not perfecting which will NEVER happen at amateur level)  their technique.