I started by disbanding my 8 canons, since below 10 they're pointless in seiges.
Used my first diplomat to attack that 3 province turkish minor to get one more muslim province to reduce the ratio of non-religion province. Went against Byz very vast as well. I did not disband any troops, took the losses in cash from my treasury untill I got some territory + some war losses.
Maybe I didbanded some troops after a while, can't remember exactly...
Against the Mams, I only Dowed them in 1509, having a big army lead by a seiging guy off the coast of Egypt. Unloaded, got the province around 1510, just in time to get the "The Sultan become 'Khalifa'" event and inherit the whole lot of them

This as the down side of having a few more province to convert from shiite, but he also got rid of the catholics in Lebanon, so that actually helped.