Excellent work!
Having recently graduated from a star-adventurer with 50mm / 300mm lens to a fully guided HEQ5 with a 72ed, I couldn't agree more about platesolving.
It blows me away every single time - in fact, so far, it has been so accurate on the first attempt that it centres the image after 2 images are taken. I know its selfish, but I would really like to see it do a 12 image sequence to figure out where it was... #firstworldproblems right?!
On the guiding front - your guidescope looks very sharp and in focus. I got better results on my setup by making the guidescope slightly out of focus, and it seems to be more stable - The next thing on my list of tweaks was to do some cable management - like your photo the camera cables were just dangling, ive now looped the cables up to the adjustment bolts where the scope attaches to the mount. I've included a pic of my autoguiding with the slightly blurrier stars (without cable management), and the new attempt at cable management - ill post a thread on the next clear night detailing the difference (if any )
With the cable management, ill be keeping a very close eye on what is happening whilst slewing but I *think* that the loop I have left will be fine.
Just my 2 cents man!