Zoo spells stacking

[Eters]

Greetings,

It often happens while warding or using wands (Zoo spells) that one gets the ever so traumatising, time consuming, charges consuming (wands) and sanity consuming rolls of "X casts Bull strength +2 str" "X casts Bull strength +2 str" "X casts Bull strength +2 str" "X casts Bull strength +2 str" "X casts Bull strength +2 str" Over and over and over.

What I would like to suggest is making them stack towards the limit. For instance, casting Bull strength twice, while each gave you +2 would stack towards +4 casting it again would push it towards the limit, +5.

While such appears to be a large boon, I don't believe it would affect those that use maximise or empower as such metamagic would still have uses for easier and more potent warding, nor would it affect the use of skleens.