I'm considering buying a TWSBI vac700. Seeing as I'm mostly using ink samples for my writing, the ease and speed of cleaning ink out from my new pen in order to use new inks is an important consideration. I certainly understand that the vacuum filling system of the vac700 would allow one to cycle water through the barrel and feed quickly. However, wouldn't the fact that you can only get a partial fill of water by depressing the filling rod result in more inconvenience than help for cleaning it since you can't flush water through the whole body of the pen? What are peoples' experience with cleaning ink out of the vac700?
Thank you for any help.