Maybe because ectos tend to have smaller joints/a lighter frame making any gains in muscle more substantial?
yeah, it looks bigger, need less gains to look more impressive.
wont suffer from huge waist syndrome.
and they have by nature smaller stomachs(the inside),so they cant really overeat much, this is why they leaner, not some faster metabolism.
and being smaller overall at the beginning could grant them much superior steroid response, if you know what i mean, ever seen how women blow up like crazy on even just bit anavar?smaller organism responds better to lower doses,and wiht higher doses, they just literaly explode.
you can tell, if someone doesnt get to say galeniko level on a gramm weekly, they simply not destined to a career in this.
bc from galeniko to even good amateur, is like 5 times more size(if you subsract the bones,etc).
and using 5gramms doesnt mean the gains will be 5times more.
so whats god genetics,imo the ppl who gain nicely on low doses.