I'm not an expert...But I don't think you want the vermiculite in there.....Instead I would replace the vermiculite with worm castings, or mushroom compost....
Also I think 35% is wayyyy too much perlite....I just got some pro-mix bx and I would say closer to 15 to 20% perlite would be better...But I am not sure which PM you got...The BX has some perlite in it already...
I will be mixing some soil up shortly and was thinking of going somewhere around perlite 15%.......PM 60%......Castings 25%
Best of luck to ya.