Try it, what have you got to lose? Just remember that if the speakers aren't directly coupled to the stands, you have two choices.
First, if you use the coupling discs to protect the stand, will the speaker walk on the stand, or is the speaker's mass great enough to keep this from happening? You don't want it walking.
Second, if you don't use the coupling disc to protect the stand so that the points dig into the stand and couple, is that okay with you?
I did this with my B&W Silver Signatures, but they were coupled to their slate stands with screws. I loosened the screws to allow the points and discs to do their thing and the screws prevented any walking.
I started with the small points too, but ended up with the 1" or 1.5" points before I stopped.
Also, are your speakers threaded and maybe your stands threaded where you could screw the points into the speakers and the coupling discs into the stands to get a better coupling? Look at my current setup, the points are screwed into the bottom of the speakers and the coupling discs are screwed into the top of the stands.
It might be worthwhile to take advantage of Ray's kind offer and borrow some points and discs to try.
Good luck!
Chuck