The "mix" is not any more difficult to accomplish than anything else. Thats like saying its more difficult to make test enth than test cyp. And its not really a mix either, its just attaching an enanthate ester to the 17th position of tren as per every other ester that is attached to an AAS. The only thing to overcome would be finding a source of tren enth powder to make the mixture with. The reason that tren acetate is so common is because that is what is in finiplex, and most ppl make their own because of the cost. I'm not really sure what your trying to say here?