Well... I never did 3 coats in 3 days...
General practice for me is to coat with few drops and then leave it for at least 48-72 hours. Recently, I faced the same issue with a wonderful but over-dried bat. On first try with even less power, similar marks started appearing. I oiled it 2 times (few drops only) with a gap of 3 days. Then tried again, they started to appear again when I increased the power. I re-oiled with even less drops the bat for another 2 times.
After that the bat was fine and no more marks. Performance is brilliant in the first net. The whole team wants to bat with it now. And yes, I applied scuff sheet to the bat before playing the first match with it.
Lesson: Apply less amount of oil with more coatings. As previous poster said, over-oiling will kill your bat. Always better to be under-oiling as compared to over-oiling.