Since I've played Elder Destruction 101, I've fallen for Hourglass in my speedbows. Lemme tell you, one in this instead of a Crawler is amazing. Speedbows often get SO much quanta left that you can hasten through your deck like heck and play everything.
The deck definitely has excess quanta once it gets rolling (hence, the reason it can do things like support two grabbies, gargoyles, and fuel a lava destroyer with
). When trying to determine the optimal creature spread, I had originally tested your suggestion with an hourglass and found that while it made the T(urns)TW stats look prettier, the actual efficiency of the deck was slightly lower from the extra clicking. As I cannot find this archived data, you have me intrigued and I would like to retest this. I rather enjoy playing this deck and its variants so this wouldn't be a problem to do 200 games soon after dropping from the war battles list.
This situation of having extra quanta has caused me to mess around with other variants lately as well with only 4 QT's. I am about 75-100 games through testing replacing the 5th QT with an extra discord, an AW, a peggie (I could add hourglass to this list as well), and tried an EQ as well (the EQ was fun but it was fail for efficiency). I would also like to start a test of this variety with an unupped ghost. The good thing about rainbows is that you can test and re-test them to find the best variant and aren't limited to specific creatures, and often players can just mod them to what feels best for their play style (adding PC or CC, ie. subbing in toadies for crawlers).