I hunt from a different homemade saddle so take this for what it is worth.
I just got on board with amsteel bridges and bought some 1/4" for the bridge and 1/8" to make whoopi slings for a homegrown TRX exercise device. With the leftover 1/8" I made a fixed "bridge" that runs long the underside of my saddle. If my sewing gives way, I will be okay because I have amsteel blue on both sides of me, but it will be time to depart the tree at that point because I am sure my scent abatement process will have (literally) $h!t my pants...
I write this to say if you are not feeling safe in your SD, you have options to reinforce it.
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