Eli Hops help

I can do Eli Hops fine, but once I start doing them fast, my yoyo tilts. Anyone got any advice on how to keep it straight so I can keep them consistent?

This happened to me at first but all you have to do is just keep practising. Also make sure the string doesn’t hit the sides when it’s landing back on the string.

The string hitting the sides is probably my problem. I’ll pull it towards me at times if I have to.