Problem with refferer at ulockit

I'm getting a few bucks a day from a PPD network, but it is a small amount which required from me a bit of work. The rates are so low, that I did't want to do PPD any more. But before I leave this traffic as it is I wanted to check If content locking + CPA will give better results. I wanted to try a free content locker ulockit but I have a problem with it. Since my niche is cracks I need to hide the refferer. Ulockit hides the refferer through the site hiddenref. My aff links are complex urls and cannot be hidden this way - my network shows errors.

So... Do you know any way to hide the refferer which
- will hide the refferer
- will still allow the locker to track completion
?

I know I could reach it with content lock pro, but I'm in doubt if that's my thing and don't want to invest at this point

Purchase Content Lock Pro.

The whole idea was not to purchase Content Lock Pro. But I guess you're right - i will not find a free alternative to clp.
I just find PPD so not time effective... I'm getting traffic from youtube and when I look at the charts i see that for every 100 impressions(users) I get 2.3 dollars on average. Do you think it is low?