It is obvious that Kangaroo and Keyhunt each have their own strengths. As far as I know, the Kangaroo program GPU cannot be used for multiple public keys and has a limit of 125 bit intervals. Therefore, Kangaroo is currently only used as a puzzle solver. Keyhunt does not use GPU, but it can be tested in the full range space and under multiple public keys simultaneously, although its efficiency is not high when running at high bits. If kangaroos can support full range and multiple public keys, then undoubtedly it will be the most suitable. Also, I come from China and the translator may not be accurate. I apologize!

I have been testing keyhunt and the conclusion is that its speed is very fast within a small range. For example, with a 45 bit interval, 8GB of memory is much faster than 1060 speed. However, once it reaches a high level, the efficiency of keyhunt is relatively low. Currently, I am testing with 128GB of memory, and the speed has reached 2Ekey/s. However, it is obvious that these speeds are negligible in such a huge space, so I prefer kangaroo high search. I am still testing more kangaroo conclusions. Thank you and greetings

Can try different combinations multiple times, personal recommendation  256   512   1024  or   512    1024    2048？