As a rule, I do not deviate from established baking times. For me, the problem with a lower temp for a longer period of time is that the cake dries out and does not remain moist. This is my experience and there may be more advanced bakers that have experimented successfully with these two variables.
HTH
The only time I bake at a lower temp. is when I do 12" or larger. I do use a flower nail as a heating core and I have better evenly baked cakes because of it. Again, I only do this with larger cakes. Hope this helps.
Amy
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