If the #1 slot is converted to an auto attack on/off toggle and these attacks are at no stamina cost say at a set interval or delays are added to weapons i am all for it honestly. it wouldn't "Ruin" guild mark attacks or secondary's it would make them more valuable, they stay at will attacks at the cost of stamina that have nice effects and generate extra tp.

Now mind you i am pro auto attack for melee/mage classes i am very weary of putting archer and any future ranged classes on full auto.