I'm a fellow Tristana main, and I have to say I agree with all you've said on there.
Note that, while mainstream, Thunderlord's Decree is a really good Mastery on her as well; it's not as versatile as WB or FoB, but it offers enough additional damage for some good trades.
I've been experimenting with what to use as her starting weapons, and I've found that
+3
/
or
+
+
/
is a really good set as well if you want to get weapons like
or
earlier (especially the latter, since
builds into
which is better than
). This option should only be open for you if you feel safe or confident enough, like if you're going against
or something, but Doran's is better in most cases anyhow even if
offers some more AD.
Have you tried doing Hybrid or AP Tristana? I found a little bit of a cool interaction from her E Active: it applies spell effects twice, once from application and again from the explosion. I've had some good games with
+
, and her W/E/R abilities benefit from AP quite a lot making her that much more of a Demo.
Just a few things I thought of, hope you like them. It's always nice to see a fellow Trist main here.