Back on topic and the subject of the probe droid crash. Back before it was mentioned here, I always assumed the second impact was a diffrent meteorite but after everyone here said it was the same, I decided to check out The Annotated Screenplay. It confirms that it's the same crash but it reads a little diffrent to what apears on screen. (Well to me at least.)
One of these probes zooms toward the planet Hoth and lands on its ice-covered surface. An explosion marks the point of impact. A weird mechanical sound rises above the the whining wind. A strange probe robot with several extended sensors emerges from the smoke-shrouded crater. The ominous mechanical probe floats across the snow plain and disappears.

Then, after a quick description of Luke on his tauntaun

Luke Skywalker notices something in the sky. He takes a pair of electrobinoculers from his utility belt and through them sees smoke rising from where the probe robot has crashed.

There's no mention of a second crash, Luke could just as easily noticed the smoke on the horizon. I don't know if removing the 2nd crash would mess up the editing of the scene but it might be an idea to remove it so we don't have to witness the same crash twice.

Just my two cents on the subject.

You know, maybe a cheaper way around this scene would be to remove the second "meteor hitting the hill" scene and edit it as follows.

(1) everything is as-is, but when we get the close-up of Luke on the Taun-Taun, just add a bass sound effect as we hear the audio of the probe impact in the distance.

(2) Instead of the shot that we see, adjust it so it is through the lens of his macro-binocs ala ANH when Luke is looking for R2 at night time on his uncle's ranch.

(3) you could also take out the meteor impact and have him looking at the smoke coming out post-impact, suggesting that Luke just missed the initial landing and thus the previous scene showing the probot emerge. That way you don't have a repeating scene issue and it flows with the probot entrance a minute or so before as a continuous shot as opposed to a brief jump back in time.

- so delete the meteor coming down and explosion in the second shot, and add a macro-binoc overlay and smoke coming out of the impact crater to indicate its been there for at least a few minutes.

So scrap my first suggestion; I think this would be the quickest and easiest way to edit this scene so it flows better.