Thank you KSand24 I really appreciate the advice. The only reason I popped it in here was because I asked the question in my own thread yesterday morning at 9.30am ish, but got no replies. I needed to try again. Sorry.
No worries - I think I did see your question yesterday, but I was at work (I've just detached overseas and am still doubled up on shift) and then it slipped my mind later in the day.
Can I clarify whilst I am back here tho. You say keep the originals in the US. I thought the letters had to go in the hard copy application package being sent off. Are you saying yes it is OK to put scanned prints in there, but keep the originals safe. I think you are.
You don't print the scanned documents, you simply upload them to the VFS website for processing.
So, you do not usually send ANY original or printed documents to New York, other than the applicant's current passport, the stamped biometrics sheet, and the first page of the application (I think), plus return shipping and priority receipts.
The entire application process changed about a year ago, and now instead of mailing originals or copies, you scan and upload everything to the VFS website and then only mail the items listed above. Your documents will then be forwarded to Sheffield electronically for processing.
It is still possible to mail COPIES of all the documents to New York for them to scan but I think it costs about £100 to do that now (new fee as of a couple of months ago), so if you do it at home, it's cheaper.
However, regardless of whether you upload the documents or send copies to New York, we always recommend keeping all the originals to hand in the US, just in case you are contacted and asked to produce or rescan them for any reason.