Should I upgrade all of my DE troops before upgrading my th?

[Xenomancers]

Only dark troop that matters is minions so just max the minions.

[Findog]

Upgrade th to 9

Lab takes longest at th8 but at th9 u will have plenty of time to get all of lab done, especially wih walls and heroes

Plus it will be way easier to get de at th9 with better troops and extra de drill

Only de troops I did at th8 was minions to 4 and hogs to 3