However, not until the squadron transitioned in June from Nieuports to the sturdy SPAD series did he hit his stride. N.154 was re-designated Spa154 to mark the change in aircraft. Coiffard had his new craft's wheels and cowl painted red and dubbed his new Spad XIII 'Mado' after his girlfriend. He also began collaborating with squadron mates in concerted attacks on observation balloons. As a result, Spa154 would become the premier balloon busting squadron of the war, with over 70 claimed. However, the French system of awarding a victory to every pilot involved in a shoot-down blurs the actual count.