Two things:
Happy birthday, first of all! I hope you have a wonderful birthday!
Second, I think you're the first to get a flawless Jolly Zekrom. Congratulations, if so! How did you do it since you aren't able to check the IVs? I'm aiming for an Adamant Zekrom myself, and I'm glad that there's hope for us out there. I've been so worried that in the case of the two mascot legends, it was hard to RNG them (and risky).