Don't do it.
Tren E is exactly the same thing as A, except it will take slightly longer (4 weeks) to slam you.
And if you need to stop pinning, you'll have to deal with the sides for 2 weeks after your last pin..
Tren E is no more tolerable than A, that's why we suggest people start with A first so they can control their dosages better with it or stop if need be.