Posted 13 February 2019 - 02:48
The nibs on the Platinum Balance are slightly bouncy, in a way that the Plaisir/Preppy nibs aren't. The Balance has a (pretty good) plastic body, while the Plaisir is made of aluminium, so the weight and balance of the pens are different from each other. On the whole, I think the Plaisir/Preppy Fine(03) nibs leave marginally thicker lines with marginally less feedback than the Fine nibs on the Balance.
This is from test-writing on the same sheet of paper with three F-nibbed Platinum Balance pens, three F-nibbed Plaisir/Preppy and two EF-nibbed Plaisir/Preppy pens, all with different inks. At those narrow line widths, the choice of ink can make a noticeable difference, of course.
I'm a fountain pen enthusiast, but not your consultant (as a fellow consumer) to advise on getting better value-for-money from your discretionary spending or protecting your investment in the hobby. I like to share the particularly meritorious or disappointing traits of products I've used, through product reviews and replies to others' posts, but please don't expect (or ask) me to frame things specifically in terms of how it would apply to your choice of pens, inks and paper products, or satisfy your preferences for shading, sheen, wet, broad, cheap, et cetera.