If the output of your supply is electronically regulated, the series resistor trick on the paralleled rectifiers will be fine. In many/most cases it will be fine. However, if the supply has no post-rectification electronic regulation, be advised that resistors in series with the rectifiers will "soften" the supply such that heavier load demands will lower the output voltage more than the demands would with "non-resistored" rectifiers. That's the trade-off.
Small value resistors in series with rectifiers that are NOT in parallel are not the least bit uncommon in even the finest commercial and military designs. In those cases, they're used to limit inrush current when the supply is first turned on so that the diode's maximum current rating is not exceeded by massive filter capacitance in its initial charging from zero to max voltage. These resistor values are small enough so as to not contribute greatly to the "softness" of the supply. In most of those cases, there's a post-rectifier regulator anyway.
Beware of the power rating of any series resistor you introduce. Make sure that the I²R power dissipated by that resistance is covered by the power rating of the resistor. It'll handle the initial surge of inrush since that's momentary, but be sure that the normal running current is covered.
Dean