No. One lag check is enough. Titan Ex is not a difficult fight, it's an incredibly boring and stupid fight. Dodge things = win. No strategy, just dodge all. Lag even once in the 8 mins fight, your entire team wipe. Get 10% echo, your team will probably wipe because of too much dps and phases switching at akward times..

Levi Ex is fun. You have to dodge things or else it's a wipe, but at least there is variety and some room for error. Things that titan lacks cruely