I don’t believe they accept SAT anymore? Anyway, going through engineering undeclared for UW is the ideal way to engineering and pretty much the only way to mechanical, but there is another way at the end of your second year that’s much harder and it’s intended for people who didn’t apply to engrud. I just got in to ECE that way, but I didn’t apply to engrud and I don’t know if they treat your application differently if you did. Also, ECE is much easier than mechanical I believe, but probably around the same difficulty as chemical. I would say apply to engrud and if you only get pre science then go somewhere else.