playing against a mainly LAG group best to turn into a rock then when they have you pegged as a rock you can open up
I think this relies on them going 'wait, maybe I should be more cautious here since this guy is a bit tighter', which I think I have seen very little of. If anything they see tight as scared or weak (which it sometimes is), and will bully you more than anyone else.
People like to call, and fall in love with hands. Best, in my opinion, to come across as one massive LAG like the rest of them, the LAGs love trying to outplay their fellow LAGs. But you have switched back to TAG, and they don't know it.