I find it hard also,especially the OLL parity.And Dayan 4x4 is a bit huge and heavy for one-handed,I was just hoping I'd not meet both OLL and PLL parity cases in the turn:P
I usually buy cubes from HK nowstore,pm me if you want more details:)
I'm a left-hander and my friends suggested me to do OH with my RH(I have no idea if they were tricking me:D)
But I have got used to use RH for OH,I'm training my LH now,hopefully I will post a OH with both hands video soon.
3x3 One-handed 18.00 Average of 5 (using DaYan LingYun)
This is actually the test of the DaYanⅢ-LingYun 3x3 for the DaYan manufacture.
I took the video early yesterday morning...so there are mistakes and a failture on stopping the timer after the third solve.It should have been a sub-18...