/ic/ - Artwork/Critique

Hey guys, got a few questions for ya.

1) Tablet Position: Bamboo Splash (pic related).
I have been using it for a little under a year and it works perfect for me and my skill level (beginner/hobbyist/casual, etc). My question though, since I have been using it more and more lately (almost 3 to 4 hours a day now) should I try to dock it into an angled position while I'm using it? Will this be better for my hand/wrist in the long run? I'm comfortable either way but I was curious.

2) Tablet Life: Bamboo Splash (pic related).
Should I keep my tablet plugged in while it is not in use? I know these models are considered cheap to a lot of people, I've even been told I should replace it with a more advanced model but honestly it's perfect for me. I just want to make sure it will last as long as possible.

3) SketchBook Pro v 6.2 (pic unrelated).
I am under the impression that this software is the absolute best. I fell in love with SketchBook Express (which was one of two software programs bundled with my Bamboo Splash at the time) and I was wondering if any of you who may also run the software had a custom made brush you wouldn't mind sharing or know where I could find some. I have tried making my own and I haven't been 100% satisfied just yet.

Sorry if the post is a little long, thanks ahead of time if you answer and I've tabbed out and here's a preemptive fuck you to the assholes.