I have several more questions before I decide to place my order from your service:)

Sorry for bothering your staffs once again but honestly this is the best customer experience I had ever had compare to other custom services online.I would like to oder a custom print mousepad, so here are my questions:
1.I’m pending on choosing between the Aqua Speed and the Thor surface, I’m used to playing on a speed mousepad but because of my high dpi i also need to have a bit of control to compensate. The current mousepad that I am using have the perfect balance of speed and controllability (very speedy but have a tiny bit of control). This might seem to be an useless question because I have watched a lot of reviews from both mousepads. I have learned that the Thor might be uncontrollable for me and the Aqua Speed might be a bit too slow for me. Could you please give me some more details about each pads for me to consider one or another?
2.I also had some inquiries about how to clean the product because I had slightly warp my current mousepad when I soak it in soapy water, the rubber at the bottom just disintegrate and deformed which made the whole mousepad curl up.I’m also concern about the print of the custom mousepad will fade after time and usage. How can I properly clean my mousepad to preserved it’s longevity?
3.I chose the 600x400mm size for my custom mousepad and saw that the minimum image is 2400×1614 pixels but is this affect the printing if I have the exact minimum size? I design my art work according to the ratio of the mousepad but will the final image turns out better if I had a higher resolution image? If yes then what is the recommend size?
4.What is the option for clear edge stitched? I didn’t understand what that mean even after I see the examples.