Option 1. I can wedge them kinda up under the drip guard but this leaves part of the back side free hanging, which i'm not sure if that is a problem or not. This close to the dripline isn't great for snow tho we do have a roof rake. Looking at neighboring housed they have them pretty close to the drip line like so.
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Put a 1x2 or 1x3 behind it and tuck it under the drip edge.
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Put a 1x2 or 1x3 behind it and tuck it under the drip edge.