Stuff I now make that had a lot of butter and you gotta believe I am a butter boy, I am starting to cut by 50% and using olive oil for the lost butter. And in most things its actually better that way. The butter adds flavor, but I still taste it and it has 1/2 the fat. Plus it cancels out!
" A large analysis of 42 studies with more than 800,000 participants found that olive oil was the only source of monounsaturated fat that seemed to reduce heart disease risk ( 4 ). Research has also shown that one of olive oil's heart-healthy effects is an increase in HDL cholesterol. "
I have used it, but I am a bit different about injecting, I punch a lot of holes with a little injection, I don't like injection pooling in the meat. Besides the butter hits that cold turkey and clots up anyway...LOL
I have really seen no troubles.
My suggestion is, its a good excuse for you to smoke a chicken and try it ahead of time. Whats wrong with you, missing that idea. LOL