Flair Writometer Ball Pen | Tip Size 0.6 mm | Comfortable Grip for Smooth Writing | School and Office Stationery | Blue Ink, Pack of 20.

The average write-out length for a gel pen is between 500 to 600 meters; that's something on the nose of ~40 pages. The average ballpoint has a write-out length of ~1 mile or 1,600 meters; that puts it around ~100 pages. Since you like the Sharpie Gel pen, the Flair Writometer - Gel Pen has an expected write-out length of 1,200 meters. If you were willing to switch to a ballpoint pen, I have a few quick and dirty references memorized: probably THE cheapest option (let's read that as: most economically viable) is probably the BiC Round Stic - Xtra Life; not only is it cheap, but it also has a ~2,000 meter write-out length. Both the BiC Cristal Original and the pressurized Fisher Space Pen have write-out lengths of ~3,500 meters, and you can find the Cristal in finer tip sizes (Original Fine for 0.8 and Exact for 0.7) to extend its lifetime even further. The Caran d' Arche Goliath also boasts a write-out length of 8,000 meters, which they say is equivalent to 600 A4 pages. HOWEVER, the Flair Writometer - Ballpoint Pen has a staggering write-out length of 12,500 meters, which should be roughly 20 times as long-lasting as your Sharpie Gel pen. That means if we snake the logic from the Goliath or pair that with your real-world experience, each one of these ballpoint pens should last you for approximately 1,000 pages apiece. Drying times? Strength under a highlighter? The other cruces of your question, I cannot speak on. I've only memorized write-out lengths. Thusly, my two cents only goes so far.