I have seen several broken flat springs partially repaired but didn't know the circumstances. Have actually SEEN only one broken flat spring where I knew the reason and in that particular case it was brute force applied improperly during assembly. I suspect that they break somewhat more frequently than the coil ones but I myself have never seen or heard of either one breaking in normal usage. I use a leather pad under all mine.
I personally do not and normally will not use coil spring receivers although I do use their hammers on occasion. Just me, no other compelling reason.
Regards, Joe
