Yeah, I'm uncertain as well... That was a supposition, but come to think of it, it may not work... Guess we have to test it first
I've been thinking about an archer party for quite a while... I guess I may as well do one. The main thing I'm still pondering about is should I go for Trigger and its built-in archer crit or for Telescopic + Ale barrel (that gives +100% base attack to all archers in addition to a nice crit bonus), because unless I pick a mage, I can't go for both (I need 2 artifact slots for those, and with warrior/paladin + trigger I have only 1)...
It would require some further planning I guess.