In Options you can pause submissions after x amount and for x amount of time. You should control your tier 1 links but T2+ I just let SER go to town on them.
If you mean your T2 links you unchecked the pause submission then yes that's what I do. I want as many links as possible to T3 and T2, but that's my strategy. I do mix it up a little, with high PR to T2 and only .co.uk/.org/uk/edu/gov sites sometimes to T2 and T1. I'm always varying something to make my link profile a little more realistic.
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