this is my go to solution as well so far. it adds a little extra work but it's useful for more than just filling loops. if you ever need to take parts out you could essentially remove anything. more contact points could mean more leaking points but the alphacool nylon tpv quick disconnects have been solid for 2 months so far. but idt you could add enough in this case to do that due to space. maybe with their new lineup or slimmer quick disconnects.
Mentioned this on Reddit someone asked the same question. It's simple to fill the LT Solo via the port, disconnect CPU 8 pin uninstall the LT SOLO you should have enough slack to bring the LT SOLO to the highest point to ensure you are able to fully fill the loop. Cycle PC until the loop is filled. Re-Install LT SOLO.