I would not print borderless because the print driver will expand the image a little beyond the print size in order to get the full bleed, though you can compensate for that in your cropping.
However, to maximize the print size from the 3880. I print on 17x22 with the minimum margins allowed by the 3880, and matt using 1-1/4" archival print corners which IMO work as well at that print size as T-hinges on the top, and don't impinge on the print area. I don't have to worry about borders for signing in that I am not selling fine art prints, so it works fine for me.
If you are framing or mounting without an overmatt, you can either go borderless to start or trim off the borders later.