Medy, Just for your info, the Masters Black Widow Tour spike is about the best over all that your are looking at in this one. .There is also a Champ spike that is the same design and gives the same amount of stability. I have both on the shoes I have and both are excellent. The Champ spike may be a little better in that it doesn't have the adjustment ring that you have to use for a stiffer feel under foot with the Black Widow, but that is the only drawback to that model. May I also suggest that you purchase the spike tool that is shown. It is an excellent tool for removing and replacing spikes and comes in very handy. Also, If you do replace those spikes that you currently have, keep a couple of the better ones just in case you damage one of the spikes. You never know when you may need to put one on if you lose one or damage one until you can replace the spike with a matching style.