I've used SB's method with varying success. I also combined SB's method with moving the chainring round one position at a time and re-tested each time, laborious to say the least but I found one position that was OK. Without moving it around I wouln't have I don't think.
I've used SB's method with varying success. I also combined SB's method with moving the chainring round one position at a time and re-tested each time, laborious to say the least but I found one position that was OK. Without moving it around I wouln't have I don't think.