Parker ballpoint refills

[balidey]

As I have a growing collection of Parker Jotters I thought I could get a couple of different colours. That way I can justify having so many on my desk.
So a quick look on cultpens shows the normal ink type in red, black, blue.
But they now do Gel refills and also a hybrid ink.
Then there is a pressurised type, which would be handy as I am often writing on bits of paper at odd angles.
And Ohto do extra fine tips, which sound interesting.
Plus other makes have more colour choices and then some are broad tips.

http://www.cultpens.com/c/q/explore/product-type/refills/parker-type-g2-refills

Anyone tried any of the more unusual type refills?

My wife's going to kill me if she sees I am planning on spending £20 ish of ball point pen refills.

 

[Northam Saint]

Not wishing to upset your SWMBO but have you seen here

http://www.everydaypens.com/15-g2-parker-style-ballpoint-pen-refill

Big selection.

 

[balidey]

Thanks, not heard of them before.
Is there such a thing as IAD ?

 

[FrankieG]

Schmidt P900 come in a good few colours, including magenta and turquoise. For ultra-smooth writing quality I personally prefer Schneider Slider 755 (Parker compatible) refills, but they only come in the more common colours.