Would you consider slightly upping the drop rate on tacvi pieces in CT? The CT patterns are easy enough to get, however if you want all 8 pieces of tacvi you literally have to clear every NPC in the zone at least a dozen times. This would likely be a huge bottle neck for newer players, whereas in Tacvi a newer player really only had to clear a much smaller zone a handful of times in order to get their required pieces. Another idea would be to reduce the drop rate on patterns from the bosses to 50% and put in more magic box recipes that allow you to skip from qvic to CT level. That'd allow groups to target/camp needed pieces but wouldn't make it the easy 100% rate it is now (would also incentivise people to actually learn the zone/spawns/etc.)
I like the change (Tacvi was small, boring, and... well... boring), it just seems the drop rate is a bit elusive, especially for that last piece