To avoid hardening of the septum, the weight should be increased slowly, as already stated by Sensei and igigi. Maybe this will help you, Obi.
The SR vs creeping issue also concerns me. In my P1 I did not use SR but creep and gained 1.6 cm BPFSL within 77 days. I would like to discuss this topic in more detail with Kyrpä, as he is a proponent of SR. I recall a statement by Tutt that he thinks both are possible, although SR is the preferred option: Tutt - Gaining volume with Kyrpa
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As Kyrpa said, if you figured an easy way to lock the strain after each time you move backward, it would be pure stress relaxation. I would say that creep is not terrible. There are several studies on other material showing SR and Creep to produce similar total elongation. There are just a few characteristics of this living organ that I believe make SR preferred. But creep will still work.
However, Kyrpä is of the opinion that creeping leads to hardening of the septum: Kyrpa - Gaining volume with Kyrpa
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Strain is crucial to adapt the ECM of the connective tissue to the elongation and not for the applied external stress via loading.
Both forms of adaptation induce collagen synthesis but the difference being the STRAIN primarily producing elongation and the STRESS producing strenghtening of the tissue due to growth.
Creep has the huge advantage that it is much easier to handle, especially when you are hanging. You can theoretically read the newspaper, pick your nose, iron or do anything else on the side, since “only” the weight has to be constant. You have your hands free and don’t have to worry about anything. SR is a bit more challenging.
To improve the common understanding of SR vs. creep, I tried to show load and strain graphically. I hope that it helps a little. Pls see the attachment.
I have already posted this in igigi’s Progress report:
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The difference between creep and SR is as follows:
- Creep: The stress (force/cross section) remains constant.
Here, the weight is increased in small steps. At each intermediate step (the time the weight remains unchanged), the stress remains constant, but the strain changes as your device “creeps” and thus becomes longer. The length changes “creeping” so to speak.
- SR: The strain remains constant.
With SR you set a fixed length and keep it constant. Due to the elongation, the ECM adapts to the connective tissue and the stress is reduced. After a certain time, you increase the strain and keep it constant again. The length changes in small steps.
Explanation SR
Yellow curve: The strain or the length is changed every x minutes (here 5 min has been established as a good choice).
Orange curve: As soon as the length (strain) is constant, the load on the shaft is reducing (or in other words: the resistance of the shaft decreases) ==> SR
Explanation creep:
Blue curve: load is increased by 500 g every 5 min.
Gray curve: The length resp. strain creeps upwards.
Then I would like to take the liberty of saying a few words about the unpleasant discussions here.
I find this topic here overwhelming and every action is based on scientific research and can be justified. I think there is no question what a great contribution Kyrpä, Tutt & Co. have made here. To be able to make decisions like this takes knowledge, time and the ability to teach yourself things. These are all not things to be taken for granted and I am extremely grateful for ALL the contributions here. Stay kind to each other and we will all grow.
Humility and gratitude never hurt.