If a ball does "one thing one shot and another thing another shot" then you havn't thrown it the same. The cover or core of a ball do not change from shot to shot, so if you throw the ball the same 2 shots in a row, it will do the same thing... its simple physics!
The RS1 does start up earlier than some pearls due to the low RG core, however being a pearl, and not being desgned for heavier oil conditions, it will still get good length. Also, if you read the ball picked up early, why drill it to go long?
play with the surface of the ball, or use it on different conditions, but you cannot say a ball is rubbish just because it does not work for you.
Ryan