Hypothesis for improving the cheap, common ZA-8 die-cast alloy to provide better bearing capabilities than bronze or even the ZA-27 alloy itself, just by adding one third of yet another common, cheap (I've got some 25 kg of that stuff free) structural Al-Si alloy. Excel sheet provide the proportions for this "B4ST4RDIUM", with link to the findings of some intrepid Polish Researchers. While promising so far, I'll have to wait for the empirical results. OTOH: My upcoming bearings won't be used in mining, quarries or at paper mills - but as I have a bucket full of the raw (unusable for me) Zinky stuff, I might just dilute it to ingots with useful properties. My immediate need is fingers for my steady & following rest lathe projects. I forgot to write that the casting temperature is as low as 540 C, and that its friction coefficient is lower than for both bronze and even ZA-27 as well, especially at high bearing pressures >10MPa).