He He - probably depend who told you - if in doubt get one of your instructors to check it

BTW - its Kyu

Hikite - literally means "returning hand" - and it should
eventually become a completely natural reaction-movement and not involve too much conscious thought process - but don't worry too soon

Also - if your Hikite "feels natural" (and you haven't been training for several years) then it "probably" isn't "enough" unless you're one of the "naturals"

Especially when blocking I find that it sometimes helps if you think of using the hikite arm/hand as grabbing an attacking limb and pulling it back hard to unbalance the attacker just before you use the "block" as an arm break

HTH
Jim
EDIT: BTW - I don't think the "shoulder" build enters into the equation.....