"The rule of thumb, is to cup the apple gently in the palm, then lift and twist in one easy movement, This avoids finger pressure, which causes bruising.
Also, take the greatest of care when transffering your bucket to the bin.. Get as low to the base as you possibly can then release your straps, slowly- not letting- go so as to ease the crop onto the wood...
Dropping the lot is no good for anyone...
Your work will be inspected, daily. If there's more than a 5% flaw in your yield then we'll be saying goodbye.