Red Gathering scrip macro:
/ac "Discerning Eye" <wait.2>
/ac "Impulsive Appraisal II" <wait.3>
/ac "Discerning Eye"
/ac "Single Mind" <wait.2>
/ac "Impulsive Appraisal II" <wait.3>
/ac "Discerning Eye"
/ac "Single Mind" <wait.2>
/ac "Methodical Appraisal" <wait.3>

It will attempt to use Discerning Eye first - but if you have a proc from the previous IA2, it will skip the Discerning Eye line and use Single Mind. If you do not have a Discerning Eye proc, it will use Discerning Eye and skip the Single Mind line.