Yeah, I think the main thing to realize here is you can't be to stringent when cold calling a LAG. By doing so, you'll often pass up on several situations with strong positive expectation.

Another point worth mentioning, LAGs will often bust early and therefore you should take advantage of every opportunity to extract some $ from them. Verse LAGS, in particular, I think it's good to make a big effort to push small edges preflop, as the payoff is often very rewarding.

Cold calling can be profitable; you just need to find the right spots to do it. Playing verse a LAG, who raises too much, is a prime example.