Just because you have experience with poor grade " commercial retail" lipos doesn't mean they last.
I have experience with a lipo cell that lasts much longer than a 1,2,3 year life. I talk about 10-20 year life.
Typical hobby grade " commercial lipo" lasts 200 cycles, one to three years.
I am talking 30, 40, 50,000 cycles to a % DOD. ten year lifespan minimum.
50,000 > 200.
If you want the pack to last 200 cycles, use no protection.
If you want the pack to use 50,000 cycles, .... There are " commercial lipos" that can do this. They are made from retailers such as Chevrolet or Ford... are true lipo, last longer than a hobby grade junk 200 cycle... lipo with no protection.
10 years or 2 years, your choice. Friend. trust me, hobby grade is bare minimum and average life is 200 cycles...not 20K - 50K.
yes you might not see it but I do. I do. I do not know if this is the first pack you make.