want share this,sulfur cube wind charge ice high way

1,lead will break once the speed is high ,so i use some none ice block in each acceleration circle to deaccelerate it to prevent this happen,i have tryied 2 line and 3 line and those don't seem too effective,so i use 4 line as in video

2,this acceleration only work when place the boat in specific spot on blue ice,it not that precise i still can't figue out a definite pattern for acceleration definite happen,what i found is place the boat around in left middle.hope someone can find a pattern to make this precise

i don't know how to test the speed of something in minecraft ,i don't know whether this consider as fast,and how useful this is

https://reddit.com/link/1tw6t7x/video/ajhlz61im55h1/player