I have a P4, and I have been flying it around my harbor at 350-400ft lately. I have been following all of the FCC rules, but every few hours on the weekends, a biplane flys by at 200-400 ft, increasing the risk of a collision. Should I stop flying my P4 here? I think that they have all required permits, but here is their website: Classic Aviators on Martha's Vineyard Island
TIA!
TIA!