I use this shift sensor and its exactly like how u described it, I actually got rid of it after using it for 800km's because I started finding it annoying that the power would just cut off completely. I was never reaching continously 1250w or 500w for example.
Once I shifted late and there was an obstacle coming the motor power would cut off and that 0.5 second cutoff would be enough to get me to a stop, due to being in the wrong gear at the wrong time. Def a skill issue tho.
For now I won't use it but later on I might re add it to just have less wear on everything.
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