Has anyone tried one of these? http://www.ebay.co.uk/itm/RinG-Pen-Ultra-Large-/151651668424?pt=LH_DefaultDomain_3&hash=item234f24d1c8 I've had problems with hand pain for years and recently changed to use larger fountain pens like the Pelikan M600, TWSBI Micarta, Sailor Pro Gear etc and found that they help as I don't seem to grip as hard but with my smaller pens like my Kaweco Lilliputs I find I get pain if I use them for long periods. For example yesterday I was using my brass Lilliput for an hour or two doing a drawing and afterwards I was in a fair amount of pain, I know this was because I've tweaked the Lilliput nibs to write drier so that I can get expressive strokes by using a little pressure and that when pressing down I grip tighter and don't always loosen my grip again, but I'm looking for ways to still be able to use my smaller pens but reducing the pain I might get. I stumbled upon these Ergonomic RinG-Pen on ebay and was thinking they might help me but I'd be interested to hear if anyone hear had used them and what their experience was like.