Spent 50 plus years in the industry. So have a lot of experence. There is an old saying that is as true a a mothers love. The first attemp at retriving a fish is the best shot you will ever get. Doesnt mean repeated attemps cant get results but with every attemp the probability of loosing additional stuff down the bore hole increases. Now for the OP's problem. There are a few issues. First and foremost, a 4" well most likely has a 3 7/8" pump. Very little clearence or room for error. First thing to try to figure out, is what is the first thing the fishing tool is going to encounter down the well? If it is the PVC drop pipe or the cable. Is there that demandable yellow nylon rope? If the drop pipe will be the first thing encountered, then a fishing spear is about your only hope. If cable or rope is the uppermost lost item then either the tool in the video or a wire spear should latch onto the cable. When I saw the above video I cringed at the amaturish retrieval. All went well but I doubt they would show their failures. Can you imagine what would happen had after the latched onto the wire, if the pump was wedded tight and all the pulling resulted in a broken rope. Now you have a fishing tool and more rope down the well. I repeat, the first attempt is your best chance of retrieval. Be prepared. It should not have been with Wallyworld rope, but instead with wire rope capable of pulling the pump wire apart should it be stuck. Amateur hour. Depending on how much pump wire, rope and drop pipe is in the well should be considered. If there is enough depth and standing water, it is common to just put another pump on top and leave the old pump. I detest 4" wells for their lack of options. I would encounter stuck pumps several times a year and they were all 4 " wells. If the situation was that the pump itself was all that was bad and it was hopelessly stuck, I devised a method to shoot off the pump drop pipe at the top of the pump and retrieve the wire and drop pipe and simply install a new pump on top of the old and this would only result in @5' of well. Should the drop pipe be the first thing encountered down hole and you have no access to a fishing spear, the retrieval tool in the video will not work but there is a chance a small shop-built wire spear could be fabricated to get past the drop pipe and latch onto the wire. But for all that is holy, attach your fishing tools to a wire rope of sufficient strength to not be lost down the well should things be tight.