| A Few points Arkhandus.
1: being how the numbers are generated to begin with, not using my variant rule we's still at least be using the rule from UA for the fractional bonuses. The BAB falling from reasonable multiclassing is a good enough reason for me, and I've I'm doing it for BAB I may as well for saves too.
So the fighter is giving 2.5 to Fortitude, and the Monk is giving 2.5 to all saves, and the Monk is giving a fraction of 3/4 to BAB instead of a whole 1. That's not going to get you to BAB 2, but it gets you alot closer.
As for the multiclass monk, theyre not so great if you multiclass against type. But if you multiclass woth things that are monkish its totally different. IE Monk Ninja. Then if you're willing to blow a feat, your ninja levels count as monnk levels for the monk abilities and vice versa.
And that still doesnt solve the +2 stacking I was referring to.
Not ANY combination to get the +2 bonuses is a great idea, but with a little forethought, you can make yourself be as good as a single class character, but with significantly better saves. | 
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