Re: Random jazzy improv wanking
K, a little jazz 101
Bending is a hard thing to rid yourself of, but so is sliding once you get the hang of it. You've been working on arpeggios so that's good, gets you familiar with chord tones. Try sliding into the fifth, or doing that little blue note #4/b5 thing up in the higher registers. You can also slide into the root and 3rd, any other chord tones like 7th, 9th, etc take a little more finesse to pull off so don't worry about them right now.
Also, since you've been studying arpeggios, try practicing ONLY soloing with chord tones. Of course don't just run the patterns up and down but try to only use notes in the chord you're on. It's good practice, and once you get it down an easy way to make something that sounds "right"
Last thing--even more than notes and clean tones, jazz is about rhythms. If you listen to any good jazz solo it seems (to me, at least) the notes are almost secondary to the rhythms. I mean yeah note choice matters, but changing rhythms with similar notes sounds way better than changing notes with the same rhythm--I mean you want some repetition in there sometimes if you come up on a good riff, or wanna make something stand out, but other than that rhythm is where it's at. So yeah, more varying rhythms, aaand practice swing, a lot. Being perfectly on the beat all the time is for music made by white dudes, not jazz