I am applying for the long-term resident visa , is there any benefit to picking it up before entering the country? I could fly down to LA if I had to, if there is any advantage.

Also I was just told this by the person answering ltr visa questions. But I’m not sure what this means in practice “The pre-screening document service is currently unavailable. You are advised to submit your visa application, along with the required documents into the system first. Our staff will begin reviewing your application once submitted.”