Hi Ryan
I've been doing more LM cleaning than usual at the moment and generally concur with what Ken W said earlier. I've used One Step Fineline, Solutions HD & where needed Blitz. Prespray evenly, agitate - either with Duo or brush (if I'm feeling fit) and pad off (with an acid rinse soaked pad if required). I've been very impressed so I think you're issue may be more technique based then solution based. Having said that some people just don't get on with one product where others love it. Stick at it and you;ll be fine I'm sure. I went to a job last week, beige polyprop - kids been running amok - usual stuff and was just stunned at how good it looked afterwards so don't despair!