What skills do you prefer for ST ONLY?

Hey guys!

...for boosting... i have missed this from label :D

Mainly asking SPEED skill but i'm interesting other skill's importance in this case!
I have the theory if DC not having speed skill then why need this skill for your ST? :o;)

Any ideas?
(again write down your priority what i should boost 1st, 2nd etc)

THANX!

edit: i have FK specialized ST all the time, so i have boosted to the roof (almost) his SHO,FIN, STR... AND WHAT next? :D
His role is (in my squad) standing and struggling alone amongst DCs :) (playing 451v) my next guess is pumping with "use your head" until his overall% does not exceed(ish) comparing another starters overall% :) I don't wanna ruin my team overall% :)

Shooting and Finishing high up; Heading and Positioning next; then Strength and Speed.

It doesn't really matter how fast he is (leave that sort of thing to the wingers), as long as he can get into the right place at the right time :)