The Select Fire is barely used right now. No one needs it in a Havok because you would rather run a turbocharger in it or go directy for a charge rifle.
Prowler is pretty good with that hopup but hey, honestly, if you're not stumbling upon this weapon and this hopup early in the game, you won't use it.
But what if the other burst weapon could make use of it too? The Hemlock!
In Titanfall, the Hemlock had a so called Starburst Hopup.
My approach is the following:
- Hemlock without hopup = burst mode or single mode
- Hemlock with hopup = starburst mode or single mode
The starburst makes the Hemlock fire 5 instead of just 3 bullets. This will not only make the Hemlock a much better weapon but also makes the Select Fire much more profitable so more people will carry this hopup with them and this makes the Prowler also better - even if it's just temporary until you find a Hemlock.