I’ve routinely used the Vegasaur smart-trim feature with 2.7K and 4K GoPro footage. It works but one needs to know its limitations. I’ve used it to save archived clips after project completion but it is quite difficult to ensure that the saved clips are identical to your events on the timeline. To do so required adding frames both to the front end and tail end of an event and then using PluralEyes to get an exact match between the original event and the trimmed file. It works, but it’s pretty tedious. I shared this procedure on the Vegas Pro forum but at the moment the search function isn’t working so I can’t provide a link. All in all, I wouldn’t recommend this approach–that is, doing trimming after project completion.
It’s best use is right at the beginning as part of your basic cuts editing process. Just do cuts editing and add frames (I use 60) to both the front and tail. Then export and bring the trimmed clips back onto the timeline. One other thing to be aware of is that your metadata will be lost with the trimmed files.
wwaag