Cuplee vs Si-bell

I am still perusing this extremely helpful blog, and have finally narrowed it down to either the cupleep, or the si-bell. I do not know which one to get, because I think I have fairly strongish pelvic floor muscles due to running, so would they be too soft or something?
Also, because I am a virgin, and my cervix is about 2 inches in, so would a v shaped cuplee be better than the u shaped si-bell?