Suppose someone bought some tkhelet for his tallis, wanting to tie the Rambam tzitzit, which requires 1 half tkhelet/half white string and 3 white strings, so once it goes through the hole of the corner of the tallis it turns into 8 strings, one of them tkhelet and 7 white ones.
Subsequently, he realizes he had gotten FULL tkhelet strings, meaning he'd gotten 6 white strings and 2 tkhelet.
The question is: Can one still tie the Rambam tzitzit? Would it be a transgression? Would it be better to just accept the fact that he should tie his tzitzit in a different way?