I have a question regarding ekko's build, need help.

So ive recently picked up ekko (mid lane), ive played 8 games with him and ive won all 8. But ive been doing my build differently then most. On the recommened it goes and then into an .

1. Why is this recommended?

Also, i know most people go into .

2. the makes sense but why do people rush when the ap is low? also when are most people using the active for proto? I think people use it in combo with Ekko's E to get into the W but im not positive.

Now this is my main question, because ive kinda combined the 2 builds, by going then into and then . My reasoning for this is because gives more flat ap, more cdr, and mana sustain.

3. So my quesiton is, Is my build good? or is there a reason i shouldnt not be going first?

Also if you could op.gg me and check my match history on ekko you can see my build. The only time i got was b/c i was agaisnt LB. I would really love a higher elo's oppinion like gold or up and someone who knows ekko well to help me. it seems like my build is working but idk if i could be better by changing my build? Or if what im doing is good? some guidance would me much appreciated!