When I experiment with cable routing, I may take the cable out of its housing 10 times per evening. If the end is soldered, it is a bread-and-butter operation. If it is not, I may succeed once, provided I take a lot of care. I solder all ends as a matter of principle, because you might not be able to do it later once the end starts to fray, and I never know where I might experiment next. Moreover, after you have practiced, it takes no more time than crimping, and you may start to deem crimping pointless.