Got a few questions for the vets and guys that have had few cycles

IF just absolute size is what your after then:

1.) Testosterone undeconate this has longer ester than even cypionate why isnt it used more? Its in sustanon250?

2.) Bulking steroids is test the best or are there some compounds that are useful like deca ?

3.) Tren is that great for size as i am interested in using A or E next year i here great strength gains?

I do understand diet is the key but just curious what compounds are best on high calorie diets?

cheers ML