2.0 TC sharpness test -- feedback requested

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Jerry-astro
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2.0 TC sharpness test -- feedback requested

Hey, all you forum experts out there, could use a little feedback and a second (third, fourth, etc) opinion on this.  Just picked up a 2.0 TC to use with the 100-400 and ran a test at a nearby lake with a very cooperative Great Blue Heron.  I picked a couple of representative shots, both taken at max FL (800mm).  I'm curious if you feel that the sharpness is acceptable and within what you might regard as normal limits for a combo like that.  Both images feel a bit soft to me, but it's possible my expectations are too high.

Here are a couple of examples at full res... pixel peep to your heart's content.  Settings were pretty well at LR defaults, including sharpening.  May be a bit of minor tonal adjustments in at least one of these.

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Jerry-Astro
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