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Hi @Kim-Fitz , this is basic physics and design spec. Your guitar 0028 (standard) is shorter scale 24.9 and designed for light strings. The tension these strings create on your guitar in standard tuning are 170lbs +or- depending on your brand. When you tune to open E you will add 15 to 20 lbs of tension or additional 10% or so. If you put some Extra lights on and tune to Open E you will have 160 lbs tension, well below what light strings in Standard tuning exert. As Martin stated, tune up and then tune back down if you want to keep Lights on. If you want to stay in Open E or if you don’t want to worry about it, use Extra Lights. You will lose a little volume but you will find them easier to play due to their lower tension.