Do you have a recoil or slide function problem you are trying to solve now? If not, probably no benefit. However, a couple inexpensive recoil springs are not a bad thing to have on hand. Your current spring could eventually wear, but more likely get damaged while removed from the pistol (stepped on). Also you may just want to find out what effect different spring weight have, in addition to an onhand stock spring. As long as you do not go too far from stock there is little chance of any damage.
For maximum all around relibility with most all commercial ammunitions, the stock weight spring is usually best. But if you are shooting competition, or normally shoot mostly all really hot or really light loads a change of spring weight could help. Why not get an inexpensive tuning pack (three weights-one light, one stock, one heavy) and see. If this is a CCW pistol, be sure your carry ammo functions 100% with any change of spring weight.
