Nice jupiter images!
If you can control the thermal problems in and around the scope, then I'm sure you'll be on track to getting great images. If there are thermal problems then no amount of collimation, tracking etc will help.
Only when you're in thermal equilibrium can you really benefit from those other things. I spent the best part of 10 years living here in Canberra and suffering from severe thermal problems the whole time before I figured it out.
p.s. I've updated my website, drop by and have a look. feedback welcome.
www.acquerra.com.au/personal/bird/astronomy
regards, Bird