Recently, I've been thinking of replacing Leopard with Tiger on my 1.5ghz Powerbook. Leopard's nice and all, but it is a bit sluggish on this computer sometimes, even with an SSD and 2 gigs of RAM. Would Tiger speed it up quite a bit? The only issue I have with switching is that some of my apps won't work on the older operating system (like Leopard-WebKit). Is it worth it to switch?