Well yes, I did eventually solve the 5x5x5 Pyraminx off camera but it took a long time, this is definitely an interesting challenge, significantly harder than the Master Pyraminx and there is a twist at the end... the '3x3x3' stage is not actually a pyraminx stage! Hopefully YuXin will continue releasing bigger Pyraminxes and minxes that still turn well!

You can buy it here