Optimising slayer setups: cannon question

I am kitting myself out to use whatever combat style the slayer monsters are weak to + cannon. I know the cannon uses higher of melee/ranged acc when using mage setups, however mage is by far my highest of the combat skills and it feels fun using the elemental weaknesses alongside the new ammys.

I have been doing research and I can't really find an answer to whether or not the accuracy drop for the cannon when maximising mage gear is substantial enough to not bother, just explanations of how the mechanics work. I'd use the dps calcs but can't find one with a multicannon dps aspect so far.

My question is essentially, should I basically just never bother using the cannon when using magic (and therefore not use magic for highly cannonable tasks), or is it a bit more nuanced than that? E.g. maybe if mobs have really low (heavy?) ranged defense, I can max out magic gear and the hit to cannon accuracy will be insignificant?

What are your thoughts? Could mage + cannon could sometimes be viable or just better off avoided?