The methods 2e2e, high level and extensive parity alg collection , and doing useful piece solving premove,
They all have their perks and should be used wisely according to the scramble.
2e2e Algs document (Invented by Angelo Zhang) :
I personally like premove if I can get trace efficient in it.
2e2e is a nice prop too , to put between the Comms.
Premove concept video and explanation :
Note: In the scrambles , where there is no parity , the 2 seconds will be saved in such a way , that we will not have to do a retrace. So we are saving 2 seconds in both cases , so it is a win-win situation.
Doing +2s to compensate for the extra premove , is entirely upto the person attempting. I have not reached the stage where 2 seconds are very valuable , so I will opt out of this strategy for a while.
Opinions please , I am getting this conscious decision of doing premove into my system with few months of practise.