TweetBlends of High MG or mixed blends of 2-3 different esters will be painful on their own. EO like said above shouldn't cause the pain. Cutting yours down to 250mg will be the trick. All the Test Prop I make is with 50% EO and it helps thin it out and is not so painful. Also I cut back the BA just a tad to help as well. BA will actually cause more pain. I also use Saflower Oil for all my gear. Never been a an issue and it's super smooth and very clean/clear looking. Make sure you filter with a .2 micron filter