Guide:Not reducing too quickly
The temptation of every student of EndMyopia is to reduce their correction faster or more than their measurements justify. Or in many cases to cause their measurements to justify a reduction they have not actually yet earned, by using active focus when measuring. Visual acuity is not intended to be a measurement of your ability to active focus. Your true myopia value doesn't change until your vision actually improves. The amount of correction your are wearing is arbitrary rather you are .25 diopters under corrected or 2 diopters. The only difference being rather the correction you are wearing provides good stimulus or excessive strain.
Avoiding to too fast reduction trap
The best ways to avoid falling into the trap of reducing too quickly or too much is to be sure you are measuring objectively and as accurately as possible. Many things affect our vision and if you only take into account the measurements achieved with the ideal settings (ex. outside in full sun, first thing in the morning) you will always reduce faster and/or more than you should. By all means note these measurements but also get measurements that are in less ideal conditions (ex. artificial lighting at the end of the day). If you are taking your full range of vision into account you are much more likely to set your correction at a middle point, to provide good stimulus without excessive blur in most settings. It is usually not a good idea to reduce until you are consistently measuring 20/20 indoors for 2 weeks. Also note that different aspects of your vision tend to be effected at different rates, it is not unusual to have your snellen chart results change at a different time than your cms, and often your distance landmark (provided you have a proper text reference) will be the last thing to improve as it is well outside the diopter bubble. The point will come in your reduction when all of these measurements reflect your improvement and then you know it is time to reduce.