Thanks for shipping to Canada with USPS, they are a much cheaper alternative to UPS.
1- I was surprised to see the yellow CCPRO-Y-110 bottle shows a more orange color look than my practically empty yellow bottle that appears definitely yellow (lemon color). Is this an optical illusion and can I add the ink from the new bottle to my existing yellow cart ?
2- After reading your documentation, is there only the high density photo black CCDPRO-PK-HD-110 that can not be added to its existing cart ?
3- What is the safest weight (using an electronic scale) that a cart can empty before pulling air in the lines ?