>>5765151Yes, something small with simple geometry so that you can get a sense of how resin flows and where air gets trapped and how much work you are creating for yourself by not thinking ahead about where your channels will be and your parting line etc etc.
>>5765198The problem with your suggestion is that there will be too many channels (you will also need to add at least 4 or 5 for the air to escape) and every channel is a nub and that gets multiplied by the number of copies you want to recast.
>>5762843 has only 4 nubs, 3 of them are on flat surfaces where they are really easy to clean and only 1 is on the blade. 