Siamese Cube Solved in 29.98 Seconds

I scramble this thing using four separate RU-2gen scrambles. For each cube I do one RU-2gen scramble normally, and then another RU-2gen scramble but I replace all the R moves with Rw moves. This is the best way I could think of systematically scrambling this puzzle without giving myself any chance of getting unreasonably lucky from an insufficient scramble. If anybody wants me to make a video of walkthrough solves/the way I solve this, just let me know. I made this out of 2 YJ guanlongs by the way. It took me like 10 minutes to make, and cost ~10 bucks (including replacement stickers). I'd recommend trying to make yourself one of these, they're super fun and interesting to solve.