I don't use C1 for importing either because of file naming. I use the Julian date as part of my filename and C1 doesn't have it as a token. I've requested this, but nothing yet. I use YY + Julian Date to give me a unique, daily prefix that only takes up 7 characters instead of 8 using YYMMDD. I hate long filenames that show up as 153.....nef. I'd also like C1 to simply take the last four digits of the original filename "_DSC1234" > "1234", but it will only take the entire original filename.