Quote Originally Posted by NumberSix View Post
Quote Originally Posted by guyy View Post
In a vac 51 the problem you might run into is iron precipitating out and clogging the collector. It’s nothing you couldn’t fix relatively easily, but on the other hand, not having to remove the hood and rinse the collector would be even easier.
Excellent point. I do not trust myself to take apart my 51s.
In the past I've serviced a 51 vac and aero, but I agree with you. I tend to prefer to go by the If it ain't broke don't fix it rule whenever possible. So if you don't want to take the risk of having iron from an IG ink precipitating out and clogging the collector in a Parker 51 and you simply *must* use IG ink, then use it in a different pen.