One-way Layshaft

[glypo]

As I am sure most are aware the people opting to get their CAT SX early have the option front one-way pulley.

I have a quick question though, in what circumstances is it best to use the one-way. I have built it locked, as personally I have only driven cars with spools, one-way diffs, or normal diffs - but never with with a centre/layshaft one-way.

Is it purely preference? The manual just says the more one-way stuff you put on (i.e. one-way diff, one-way layshaft) the quicker the car will be but at cost of driving ease.

I just think it could perhaps be odd to have the one-way layshaft operating with a normal diff?

Thanks in advance for your input.