I was an LD debater for 3 years in high school, also competing in OO and HI. The majority of my experience is on the NSDA circuit, and in 2020 I was the NSDA Lincoln Douglas National Champion.
In rebuttals, please make sure you are extending impacts. This becomes especially important if your strategy is to outweigh your opponent. Please also respond to everything coming out of each speech; unless they are incredibly minute I will vote on drops. Please also provide voters in your final speech. Though debate often gets tied up in minutia, it is incredibly important to have an overarching reason that you believe you have won the round. This narrative should be present throughout every speech you give, and voters should represent those competing narratives.
My speed preference is fairly low for two reasons. First, my experience with high speed debate is fairly limited. Second, in the online world you run into further complications with tech and sound cutting out, which makes quicker debate harder to follow. If you are going to spread, however, please put me and your opponent on the email chain: firstname.lastname@example.org
As an overarching rule, traditional arguments are going to fare better with me. Vanilla critical arguments are the best idea if you can run them well. Bottom line: if the alt of your kritik is impractical and your opponent can make small piecemeal changes to the problem you link to, I will vote for your opponent.
Same general rule with Theory. Unless your opponent does something egregious, theory arguments aren’t going to fare well.
Overall, best of luck, and have fun navigating the new realm of Zoom debate.