That's simply not true. As a general rule, bonuses of the same type do not stack. If you have two different items or spells that both provide a strength bonus, you will receive only the highest. For instance, casting Bull's Strength and wearing Gauntlets of Ogre Strength provide only one single strength bonus (the higher of the two). They do not stack together. This is true for almost every stat boosting effect.
I use TCE for all my modified character abilities. I think ur all wrong, having two super characters is actually not boring. I just had a bard and a wizard/monk roll through. no turning, not heavy blasting, each battle might be your last. The Bard is great for doing just about everything. They're great face characters, do healing and charming. a monk2/wiz can actually mix it up when over run, if the stats r good. The wiz does all the lock picking and searching.