my Low dollar 318 hop-up project

exhaust is on, trying to tweak the eddy. Runs great normal driving. Mash it out of the hole, and it has a flat spot. The accelerator pump is not bad.
I was given an old 750 eddy for junk. I have put the squirters from the 750 on my 600. The 600 had a number 28, and the 750 had a number 35. Just a little bigger hole in the squirter. I also used the springs under the metering rods because they seemed a little stiffer. They were orange, had less coils. I also have the accelerator pump rod on the top hole giving it the most travel. It all has helped a lot however I haven't cured it.
I need to get this common problem found on eddy's fixed before I do or try anything else. The next thing on the list is to remove the weight on top of the ball under the squirters. Running a little short on ideas after removing the weight. By the way, it hauls on out really well once it gets past the "flat" spot, that's "not so flat" now but still exists.