Hey cloudman, I know this isn't what you want, but I'm just writing to say that I've seen your post. We aren't ghosting you. I, unfortunately, don't have a lot of experience with injecting pills in general and I don't know that I have ever actually injected a solution made from a controlled-release pill. I injected literally one or two of the original Oxycontin brand controlled-release pills, but I pretty quickly moved to Heroin, as it was plentiful in my area, cheaper and less-damaging than injecting pills.
If this is the same as injecting what are known as MSContin, then I can say that I've seen people prepare them using a pretty simple method. I believe it's what you would term "cold-shooting" in that they don't require a ton of special treatment to make them viable. It's been a long time though. The last time I was even in a position thinking about injecting Morphine was almost 5 years ago. I just wouldn't feel good about giving advice on the subject, but it would be awesome if someone more knowledgeable could come and help our brother out!