I too do DoN's but only 6 max games. Those tend to be boringly long games comparatively, and a FR game of 10 seats would be too much.
I play true TAG in these. As Mordecoke
said, I will seldom be 2nd into a pot with anything less than monsters. Unless it was limped to me and I hold semi-monsters....~~TT + or so. When I hit I do the agro part of TAG, leaving villains little option do do anything other than shove, or fold. And I don't like leaving them the option to shove.
I have found that the harder versions of DoN's are the cheaper games. So $1-5 games are tuffer than $6+ games. Folks playing extra cheap are probably there on a lifeline, and doubling up is more necessary than it is for folks playing higher BI games.