With the Mini 2 weighing 249 g out of the box, does adding any weight (light, landing gear, etc) causing it to weigh 250 g or more, take it out of Recreational Satus?
No. Any drone up to 55 pounds may be flown recreationally in the US. Any drone over 250g must be registered with the FAA and carry its number. All may be under the rec rules.
Rec vs. Pt. 107 is not determined by the weight of the drone, it’s determined by the intent of the flight.