I ran a 9xl on 16 51 gearing on 14 cells as well with no heating issues. I think the 10 xl will not heat up like talking about it but it may not run as fast as you want either. It can take more if you want to.
Peace!
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We'll see and I'll let you guys know. As soon as i can get it runnin! Now it's just the wait to get to me and then put it in...which may take some time. I want to do it right the first time! Hence all the questions! hehehe, soon!