I have about 40-50 hours a week of jobs using my Scag wb, trimmer, and blower. This is about twice the work I had last year. I have about twice the numbness in my hands now. It's not most of the day. However, I wake up every morning with very painful aches, and tingling in my hands. It's starting to scare me a bit. This is my 2nd year. I don't want to end up with CT and have to get operated on down the line. A couple weeks ago, it wasn't this bad. I'm wondering if these 2 factors could be the reasons: 1. Last week I left my blade blocker on and engaged the blades, now the blade belt is weakened on my scag. Despite the fact I tightened it, still vibrates the machine more when on. 2. I changed the line on my trimmer to this "pro" line, it seems very strong and cuts stuff with less rpms, but it now vibrates a lot more than with the regular tubular line I'd used b4. It's square shaped and I'm thinking that since it's less aerodynamic than something round, that it makes the Echo srm 230 vibrate considerably more. I use Mechanix palm padded gloves that are supposed to be anti-vibration. cost $25 at Lowes. But is there a better glove out there? Also, if I put a new blade belt on and change back to my old trimmer line ( or buy a new trimmer) could these help? It really sucks cause I used to like to write in my journal and things and even writing for a minute or two I start going numb and it gets painful. Even now my right hand's fingers our going numb as I type.