Is this correct: "Once you'll figure out how this works, you'll love it"

Is this sentence correct?

Once you'll figure out how this works, you'll love it

What I am trying to convey is:

The person that I am addressing does not understand a certain concept. I want to tell that person that once he/she understands that concept, he/she will love it.

I am not sure about the tenses. I am using Future Simple in both parts of the sentence. Is this OK? Should I use Present Simple in the first part:

Once you figure out how this works, you'll love it

Which one is correct? (Or at least better)

Solution 1:

The second one is correct:

Once you figure out how this works, you'll love it

Solution 2:

More correct (or at least more formal) would be.

Once you have figured out how this works, you'll love it.

The loving it only starts once the figuring it out is in the past tense :-)

(I am British English, which may be why I'm more likely to use the perfect tense).