Reply to zooming in on waveforms

So I've just started djing with DVS and I love it but as I practice more scratching I began to wonder how much I should have my wave forms zoomed in. So my question to you all is how much do you zoom in on your wave forms while djing? I know if i zoom in a good amount it takes a lot longer for me to scratch a sample as opposed to it being zoomed out completely where it only takes minimal movements.