My chieftain has two size 1 rapid fire g5’s with SS. Results may vary but I find that you often get noticible effects, like chaff/scb’s stops spamming or the odd (and great) engines failure.
On a medium ship like the chieftain the other exp effects on a small laser is neglible and better used for something fun like SS or heat vent on beams.
Go for it! If you don’t like the effects change it \O/