I haven't played DSL 2.1 in a long time, or Robot Arena 2 for that matter. I have messed with some UI stuff for my original RA2, but I haven't really started to create bots again. Finally after seeing a lot of progress here, I might as well put at least one of mine.

The bot Attempt uses a horizontal bar with medium drum beaters for the weapon. So far this is just my first DSL build for a long time. I'm sure there are many improvements to be made. I have made it as low as possible without the blade hitting the ground. I also hear many good things about the Hypno wheels, at least for speed.
The batteries used are 2 Red Battlepacks and 5 ant batteries. I'm not used to the DSL mod itself, and I'm not used to the realism behind it, but I'll learn within time. One thing that I know would be rejected about this bot is that it is a lightweight, and it's using a Perm 45 for a spinner motor. That kinda ruins the realism thing lol.