Goal Point Trimming per Chicoro
What is a Length Based Trim and How Do You Incorporate It into Your Routine?
If you are trying to gain length, then a length based trim may be just for you. Instead of trimming your hair based on a time table such as every 6 to 8 weeks, you base your trim on other factors: its length and your hair goals.
The length based trim should be performed on hair that has been 'thermally' or heat straightened. This includes but is not limited to blow drying, flat ironing and/or pressing. Once you have your hair relatively straight and styled in a way that you like to wear your hair, examine your ends. You will see that some hair is going to be longer than other hairs. The bulk or majority of your hair will be at the same length. Those longer hairs will make your hair appear scraggly and uneven on the ends.
Identify where the bulk of the hair is.
Determine the next length that you would like your hair to reach. It should not be more than 2-4 inches longer than the bulk of your hair.
Trim off the hair that goes beyond the goal length.
Allow your hair to fill in thickly at the new goal point length. Keep it trimmed at this length until the bulk fills in at the new length!
Congratulations! You now know how to perform a length based trim. I also call this the "Goal Point Method." You use this type of trim when you are trying to gain length, as fast as possible, on healthy hair.
TRIM Every 6-8 Weeks = To Maintain Length
TRIM Based on Length= To Reach Goal Length Faster
Only CUT = To Change Hair Style or Remove Damaged Ends
pre_medicalrulz, she has a more complex explanation in her book.