Oh snap, Using a highlight instead of a bar is fucking clever! Nicely done, btw do i see some of my influence in here? *pats self on back* :P
One small little input on aligning the kick, from the sound of it, it seems like you guys are doing it manually, kick by kick which is not the best way to do it in my opinion. The best and easiest way to do it using a sequencer, I personally used FL Studio to do all of the audio before I ever touched any of the video.
Here's the process,
1. pick your tracks, if you are layering two separate tracks pick two that have the same or similar BPM's (beats per minute). You can check what the BPM is using a free tool called 'Mixmaster BPM Analyzer' just know that it isn't 100% accurate and you might have to tweak manually.
2. Set your DAW to the song's BPM and try to align it as perfectly as you can to the grid. You do this by zooming in on one of the first kicks in the song and then check some of the last kicks in the song and adjusting the bpm accordingly, trying to get it as perfect on the grid as you can.
3. Put your kick into the sequencer and it SHOULD sound perfect if you aligned the song right, if not just tweak the bpm up or down, just know that the whole thing will move as you do this so it takes some practice, this is the only difficult part of the process IMO. In the sequencer you don't have to worry about alignment you just have to pick you kick patterns.
4. Profit?
Also, songs generally vary in bmp, most house music is around 128 bpm but it's not exactly a rule and what you can do if you are layering tracks and have two different bpm's for two different tracks is set an automation to change speed at the exact moment the second track starts, this is what I did. Like I said I used FL studio, but I would be surprised if Audacity didn't have everything I mentioned and I'm sure you can find quick tutorials on sequencers, automation and aligning tracks for Audacity on YouTube.
Cheers, and good work, we should start making our own porn and sell the cock hero brand