What's the reason for you thinking about dropping the Fana v3s? Knowing what your problem is (if you have one) or just why you're thinking of changing would help
I've had many Fana loadcell brake setups the past few years:
- CSP v2
- CSP v2 w/ brake spring & Mugen damper mod
- CSP v3 w/ & w/out Fana Brake Damper add-on & BPK (all sorts of combinations)
- CSL Elite LC
I could never achieve the same sort of braking performance as I did with prior sets of pedals which were non-loadcel (eg. TM T500RS pedals). With the loadcells, I would always either get too much in-game braking for the physical amount I pressed or not enough - same thing with brake-release. Also, sometimes the first part of travel would be one way but the 2nd part would be the other. I adjusted the in-game brake linearity (AKA sensitivity) many times but making one part better would make another worse. I could never achieve a 1:1 feel of my physical foot application to the resulting in-game application throughout the full 0-100% range. I've since gone back to non-loadcell brakes (TM T3PA-Pro) and am expecting my braking performance to increase back to the level of performance I know I'm capable of but lost all these years while using all those pedal sets I listed above.
When I was reporting my problems in the official Fanatec Brake Performance Kit beta testing thread (I was a beta tester for it), some people said they experienced the same as me. I remember someone mentioning that the CSP v3's loadcell was fundamentally just a very non-linear loadcell to begin with. Later when the CSL Elite LC came out, someone in the iRacing forums said the same thing and that the loadcell in the CSL Elites were fixed in that regard and are therefore much better and intuitive than the CSP v3's loadcell. I think at-least 2 people in the iRacing forums mentioned this. I therefore sold the CSP v3s and bought the CSL Elite LCs. They did seem better than the v3s but I'm not sure if it was just placebo on my part. Regardless if the issue was improved or not, it was still there.
Basically what I'm saying is if you're thinking about changing pedals because you're not happy with the braking - and you've experimented with adjusting the brakes (in-game sensitivity, physical travel, loadcell strength, rubber bushings, etc.) - then I would definitely change and try the Heusinkvelds out.