Here is the picture taken from my sets:
![](http://i.imgur.com/Ht52G3c.jpg)
*The colour is strong and sharp.
I put them along with 2 ink bottles Iroshizuku Kon-peki and Shin-ryoku to have colour comparison.
I will do a comparison between BSP imsto dyesub vs Originative BSP dyesub on microscope later.
Definitely, similarly, the imsto dyesub set has strong sharpness while BSP dyesub is little bit too soft.
Nevertheless, both sets are great and you can't go wrong with either of them.
BSP PBT surface is great, it is better than Gateron PBT surface in some aspects, at least in my opinion.
So BSP PBT is worth a try if you already had imsto PBT (Ivan Group Buy)