1.0ftc is my favorite PC ftc setting. IMO, if the foot candle setting is higher, it's just wasting energy. 1.5ftc isn't bothersome to me but 2.6 seems a bit too high to me unless it's controlling a large wattage light where glare may affect the PC's performance. All my PCs are 1.5ftc but my FP Sun-Tech PC is much more sensitive than my DTLs or any other PC i have, thought they're all rated 1.5ftc. I prefer CdS photoeyes since they still resemble older PCs more IMO.