I don't know anyone personally with a WP10 but I believe it should do the trick for clearing out detritus behind your rockwork.
Regarding the bash train, I think I know exactly what you are referring to, and my advice would be to continue posting and persevering!
I don't think it comes down to anything personal, but perhaps your writing style. Please don't take this personally as I'm just trying to provide advice that will help you enjoy your stay here, but sometimes your paragraphs can be a little convoluted and hard to understand. Thankfully it's my job (literally) to decipher what people say and turn it into requirements for computer applications, so I'm usually able to figure out what you're saying. But sometimes I do have to reread the post a couple times. Just a friendly tip!
Hope to meet you at Fragfest.