I found a Fellhoelter DLC Tuxedo TiBolt on eBay. I've been lusting over that particular model of the pen for awhile, and I couldn't let it go, so I bought it. I know the Fellhoelters are designed to take the Parker-style refill (or Fisher with the white tail cap), but I'm wondering if anyone has found a way to put anything else in there. Any refill that can be modded to fit in the TiBolt? I took my Dremel and worked on the nose of a Pilot G2 refill to try to make it pass through the Fellhoelter nose, but all I wound up with was ink all over me. I'm familiar with all of the different types of Parker-style refills, and tried at least one of most of them (even the EasyFlow), so I'm not looking for any suggestions of those, I'm looking for mods on other type refills - Jetstream, Pilot G2, etc. Anyone have anything?