Question about weapon skill ups

[eddyystop1999]

I've finally started using a 1h slash, a Combine Scimitar, on my level 25 druid. I raised skills in one day from single digits to 104 on blue (seems formidible) SK elephants by fearing them. I believe I always got at least 2 skill points per elephant, at most 6.

After reaching skill 104, I've killed 6 or 7 elephants without a single skill up. Am I having a bad case of RNG, or is there a mechanic I'm not aware of.

Thanks in advance.