I’ve always wondered how much effect can a cube have on you solving speeds. Yesterday, someone came to school with the stiffest, hardest to turn store-bought cube I’ve ever felt. So I lubed it with CRC, and it’s not much better. So I thought, I’d hate to solve this thing, I’ll probably get over 40 seconds. But to my surprise, I’m getting times almost just as good as I get for my good DIYs. I did one solve on that thing and got 24, then 24 on my A/ C, then 24 on a D. It seems like my look ahead is significantly worse on a fast cube and turning speed is not as fast as it seems. After doing several more solves, I ended up getting times around 21-28 on stiff cube (average: 25), 16-26 on A/C (average:21), and 22-30 on D (average:25). So I would say the difference between a good cube and a bad cube is not as major as expected.
Anyone who does significantly worse on really stiff cube?