You are allowed to split up far enough so that missiles don't hit both of you; that's enough room for both you and your partner to get positionals in as long as both of you hover close to the border. That said, I haven't been doing that because... trust issues (and my group heals through those missiles anyway). H P TTT TTT / IDC P TTT TTT is more or less what I've been doing if I don't see an opening.

The good news is that if you're worried about enrage, it's not necessary to sneak in all your positionals while tethered, even with an i110 group. The real trick is sneaking them in while Nerve Gas is on top of the position you need.

With the coming buff, however, it appears that letting me do proper DPS will be an even tougher sell than it was before. Welp, at least it's a good problem to have.