read some reviews on pre-seed and noticed a lot of people have been saying to use canola oil instead of pre-seed cuz its cheaper and does the same thing (oil is more friendlier than pre-seed and less sticky/tacky).. but CANOLA OIL!?!?!? it seems absurd? i don't know.. has anyone tried canola oil and pre-seed and can comment about which is better/worked? there have also been comments about pre-seed causing a good percentage of chemical pregnancies so that's kind of putting me off. thoughts?