it s possible that the edge of the tom where the meshhead sits , is a bit sharp .... do you break them close to the edge ?? try with tour finger if it feels "smooth"
something eles , lowcost single ply meshheads , like pearl , tama or Tdrum are weak ... in fact ,if you pay 2 or 3 time more for a roland or DDT one , it will last longer than 3 lowcost ones ... at the same time , you ll get sharper triggering and better stick response ...
I m DIYing drum pads , and for my first steps i used those cheap pearl & tama meshheads because had bought a bunch of them really really cheap ... it was ok then but as my kit is finished now , i ve equiped it with DDT dual ply , and it feels much better ....
Based on my own experience , the Tdrum are by far the weakest , the tama and pearl last a bit longer , but all 3 have a shitty soft stick response and a too elastic rebound .....
I also had 2 of those heads heads with a default , causing them to break just after i installed them ....