1.) At rank 50, crafting a rank 50 item, how many HQ results should appear on a finished product out of 100 synths, and how many of them should be +1, +2, or +3.
90% NQ, 5% HQ1, 3% HQ2, 2% HQ3

2.) At rank 50, crafting a rank 40 item, how many HQ results should appear on a finished product out of 100 synths, and how many of them should be +1, etc.
85% NQ, 10% HQ1, 3% HQ2, 2% HQ3

3.) Same question for a Rank 50 making rank 30 items.
80% NQ, 15% HQ1, 3% HQ2, 2% HQ3

4.) Same question, Rank 50 making Rank 20 items.
60% NQ, 25% HQ1, 10% HQ2, 5% HQ3

5.) Same question, Rank 50 making Rank 10 items.
40% NQ, 35% HQ1, 20% HQ2, 5% HQ3

This hypothetical has a pretty decked out crafter if he has all the abilities. No one will be that fortunate in reality for a while.