Mixing different sponsors oils in one dart to pin? Since they both have different oils and solvents?

[Biggerp73]

Only time I wouldn't is mixing oil and water based together in the same syringe. Oil from this guy and oil from that guy = no problem.

I get a little water mixed in with my oil and it works no problem

 

[KillerStack]

I used to mix water suspensions with oils just to get the suspension to flow easier - before micronized stuff was more common.
Not that I'd recommend it but that's what I did, had no problems.

 

[Slyder190]

Never an issue mixing oils from different labs. I wouldnt be ballsy enough to mix oil and water. Just me personally.