the way ice works is that its physics apply to any block within one block above the ice so a jump with the exact same hieght as the brewing stand say or a similar hit box for landing on will be a much better substitute. i did some quick expermenting and as u can see a very similar jump can be created using a head say and some strategically placed panes. obviously the head is a 2 teirs lower at .75 as opposed to .875 but this can be overlooked as the head can be placed so that it can create a shorter jump to make up for the loss of height. it looks infinitely more attractive than a brewing stand an whilst its not the exact same jump clearly it is a better option. just because there is like one really hyper specific jump doesnt mean that a brewing stand has to be used, clearly there are other options. a jump with the same height say using snow can look more in theme than a brewing stand as well and paired with ice, which should only be used to create extra mm, the extra length isnt that big of an issue as the landing can be mover a few pixels away for instance and when chaining on ice in most cases it is almost awlays necassary to chain the jump with minimal running time to reduce loss of mm meaning that when the player lands on the ice, preferably in the middle in this case they would jump straight away anyway. i hope this can make u see there are always better options than brewing stands but that being said sometimes brewing stands genuinely look ok on a map and obviously feel free to use them at your discretion. just think about the jump when you create it and what other options you have, not every jump has to be complicated and when creating appropriate parkour the colouring very important and should guide your block choices.
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