String Trimmers

I recently purchase a PP 133 Weed trimmer. I am pleased with the operation of the trimmer, but not with the design of the weed guard. This is the "dirtiest" trimmer to operate I have ever used. I get covered from head to toe, literally, with weeds when using the machine. The weed guard it to small and to far back from the trimmer head to protect the operator. Unless I can get a better weed guard I'm going to get rid of this trimmer. Can you help me. I'm tired of having to carry another change of clothes every time I use the trimmer. Thanks.