Hi there,
I didn't use spellcast during this solo (not out of being 'pure', but out of ignorance). I didn't learn to use spellcast until 1-2 months after the solo was done. I also did not "overclock" my PC to do it. "Overclocking" your PC is a trick people use to run faster in game (like a small flee hack that requires no 3rd party tools). I ran Firefox in the background of an already slow laptop to increase the lag so I blink longer. That's not close to the "overclock" trick people usually associate with the word - if I had overclocked, solo would have been much easier since I'd easily outrun anything. Overclocking is also well known to get you auto-jailed.
I did use windower macros (non-binding), distance, and TPParty. The solo does require a good amount of luck on the opening box and 1F drops. Also, I did it on BLM/SCH, not SCH/RDM as mentioned earlier. I don't think I could have done it without windower simply because I needed distance. Other benefits like TPParty and extended macros aren't necessary, but I need to know how far it is from me to know when it deaggros. You can't constantly look behind you to see if it stopped WHILE kiting on a tight path because of the way the game limits camera angels. I used distance as my 'rear view mirror'.
Don't really care to get into a windower vs purist debate. Just telling you what I did to complete the solo.