HF R300 green screen issues and settings help

[RandeF]

Hello,

I am having issues with green screen video. I am using an HF R300. I have lighting. After I use the default chroma key with Pinnacle Studio 17 on a clip I shot, residual black "noise" is present.  Here is an example where I removed the green background and replaced it with an orange jpeg. 

Here is  when I used a sample clip from the internet. following the same procedure with the Studio 17 software. as you can see there is no "black noise".

I have tried many lighting changes. Nothing helps.

Is it the settings on the camcorder that need to be adjusted?

Thanks for all your help.

Rande