The other way to do the timing changes for power is to measure the number of degrees that the sensor can cover along its slide, I reckon it’s about 8-10deg. Then get a piece of white tape, remove the sensor and stick the tape under it. Mark where 30deg is, and where the limits are either side of 30, divide that into equal increments. Put the timing at 30 deg, run it and check revs. Stop the engine and move up by increments. It should offer between 25-35 deg movement. I reckon the sweet spot will be around 34deg as Adrien mentioned.