The local pawn shop has two string trimmer candidates on the shelf. One is a Ryobi 31cc for $45, the other is a Poulan Pro 31cc for $40. 15% off sale at the moment. The Poulan Pro is purple, top to bottom, the Ryobi is an older one I think as it has a squarish power head.

I'm not sure if they both run the same engine or not; or if one is better than the other. If they are both equal, should I go with whichever seems to have the best compression? Does one have better parts support than the other?

Thanks,

Matt