yes, u can remove and discarded the spring (especially if you use the stock switches). I use this setup since I run out of omron switches. and I like it (personal preferences).
you should try any possible variations you can get, and find out which one you like the best.
How good are the Crown CWB203 screw in buttons? Iām considering some for a custom stickless for myself, but will do Seimitsu buttons instead if they are more superior buttons.
There okay, plastic quality is not so good though, I have had a few where the plastic chips off. but in general a good button, only downside is that you have to solder.
Friend of mine got this from a private seller in Korea, didnāt get a picture of the lever it self.
itās a modified Myoungshin fanta. they call it Fujin =) the lever is clear, looks sanded. and has a silicone rubber spring.
Did the plastic plunger chip, or the button casing? I donāt mind soldering so much, so thatās not a problem. It appears that PAS and eTokki are the only place to purchase these? I checked the B/S/T and didnāt stumble across anyone having those specifically, as I surmise that Sanwa and Seimitsu appear to be the gold standard.
@Johndi I had the 203Cās for a while, and yeah, the casing cracked on me on several of my buttons. I never had my own plungers so I canāt say for sure if they will, but YMMV.
203Aās are more durable, I havenāt had any crack, but I have had buttons fuse the microswitch together, so be careful if you solder to them.
Does anyone have full dimensions for the CWJ-303N?
Thereās one pic with dimensions on etokki, but it doesnāt segment the height properly, so I donāt know how deep the bottom part is, thus making it hard to judge the minimum depth I need to make a custom case without it brushing up against the bottom.
As someone in the United States, is there anywhere that I could purchase the parts required to replicate the Airbag Mod? Procuring the microswitches seems simple enough, but I am unsure of how I would go about getting a hold of the silicone grommet. Iām also assuming that the reinforcement placed underneath the switches is made in-house, as it seems to differ between mods.
Itās a lever that I would really like to try out, but it seems difficult to obtain without living in, or having a direct connection to someone in Korea.
Crown has updated dimensions. Hopefully this works for you!
Yeah I had trouble to trying to get the real deal. I attempted to get one with an IST MDF arcade stick which was supposed to include an Airbag. What they gave me is just a Myoungshin with a slightly looser regular grommet and Matsushita switches. 
Could someone explain the difference between the 303-FK and the 303-N outside of how theyāre mounted? Iām throwing together a stick just to try Korean parts, so the mounting plate style doesnāt matter, so Iād rather I just went with the best feeling stick of the two.
Dev posted a chart somewhere on page one explaining the model numbers
That chart only goes over the 307
Iām about to move to Korea, if thereās interest, I may see what I can do about procuring and selling the Airbags. Thereāll probably be some mark-up to the cost to cover my time.
Myoungshin Fanta (the newer version,medium rubber?, akishop sells) does not work well with the GSM-V0323A3 microswitches (used in Crown 303, 300gf, focusattack sells) in my opinion, Diagonals feel really no bueno. just in case someone else was trying that mod.
@āMissing Personā Iād totally be willing to purchase one if you get some together to sell. Keep us posted if you decide to follow through with it.
Iād definitely be interested fasho 
I too would be interested in one!
Considered me interested!
sign me up as well
Iāll probably make an interest check thread in a bit.