I am pretty new when it comes to prebuilt coils. I am looking for coils that feel very strong/sturdy, but I am not having the best of luck and not sure what material it is. I had coils that said they were .25ohm and all it says is "KA1 WIRE + Ni80 wire" and they felt very sturdy/hard to pull the wraps apart etc....I am looking to find these again. I bought what I thought were a good replacement for those, but they feel flimsy and easy to pull apart the wraps. They are .36ohm, 316l stainless steel, 30gx4/36g. So apparently the stainless steel wires are more flimsy...I cannot seem to find coils that have KA1 + Ni80 like the sturdy coils I once had. I am trying to figure out which material/what I need to look for in order for the coils to be sturdy like the old coils. Can someone help me out with this? Thanks in advance.