It seems like it could be convenient most of the time, but could also be a safety hazard. Wouldn't this disable engine braking on downhills? Even with a disable switch, I wouldn't feel comfortable with it. It could also be a nuisance if you're feathering the gas and let up more than you intend. This would just require a simple rev match to fix, but could be an unwelcomed side effect. Creative idea though!
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