I am taking the cross bike out on the Wabash Saturday, but you can probably do it on the road bike without a problem. Pace should be pretty relaxed (175-200W with no surges over 250W) for me so I can't think anybody will get dropped. If you want to go faster I'll probably Venga, Venga, Venga but I will let you ride me off your wheel and I will not care. Strictly headed out there for base miles as its that time of the year.
Place: Council Bluffs Wabash Trailhead
Duration: 3ish hours of riding