Question on Tune Up Timing

https://privatebin.net/?e32a4080a54ff50d#6ryGizG723eCjERtTwk33J9TiGoPBnvbQhG6Gc9J4dNS

Question on Tune Up Timing Does anyone know if spring or fall is better for a tune-up? Not sure when it makes the most sense for an older system in Summerfields, since the AC works hardest in summer but the furnace matters in winter