a little of toppic here, and MAYBE mikeller will rip my head off but well..
i have now played with both mantis confort synthetic and the pros pro equivalent: high tec multifiber.
they are close, agreed, but not the same string.
the pros pro, altough a good string (excelent considering the price) have one thing i absolutely hate, which is a plastic feeling to them that the mantis does not have. Some would call it a firmmer feel, but its for me, a plasctic and stiffer feel, that say it is still very soft for a multi.
play both os them in the redondo mid, and the one with the pros pro has been giving me some shoulder pain... go figure, because the rest of the setup is the same... same racquet, same tension, and same cross string, sugnum pro poly plasma pure.
outside of the frame, they are absolutely the same, but believe me, they play diferent when strung
please dont kill me