Not sure if anyone have shared their experiences with the pen, brush, fingers that they used to render their work.
As a noobie in this endeavor, I've learned that using your instrument is of greatest difficulty.
Pointed Flexible Pen: when I render English roundhand, Spencerian, flourishes, etc... mastering the usage of a flexible nib fountain pen is of most difficulty. Procuring a fountain pen that writes like a dip pen was even more difficult. However, I haven't tried an oblique but I do not have any inclination on using one. I digress to use a broad pen.
Broad pen: for beginners it was always suggested to a very broad pen with rounded corners (like 2.0mm). I started with a 1.9mm and gradually degraded to a 0.6mm nib. Having the inclination to grind your own helped with the expenses tremendously. However, it is still a learning feast. It has been 6 months since I started with broad pen, specifically Chancery cursive.
No one really tells you what is best, you really need to find it yourself. Like, having a stack of paper underneath helped in the beginning. But to really feel the pen on its flat edge, you just need the paper on a flat hard surface. With a thin paper on a hard surface, you will quickly learn to feel the crisp sharp edge of your pen. (Either that or it makes you really frustrated and give up...but dont').
I've learned it takes time, lots of time as I am not gifted with my hands.
---- whhoossh!! a load off my chest