I have changed the way the movement speed hack works. It is now multiplicative instead of additive. For example, previously if you set the hack to 1, your speed would be [original speed] + 1. Now your speed will be [original speed] * 1 (i.e., your speed won't be changed at all). If you set the hack to 2, your speed will double: [original speed] * 2. Setting the movement speed hack increase to 1.15 will give you an increase very similar to what an increase of 1 used to be (6.71 + 1 = 6.71 * 1.15). Basically, if you are currently using "1," you should now use 1.15.
The benefit of this change is that all movement will be hacked equally, which is also much safer.
This requires updating Speeder to version 20051.