Since my first 124 purchased new in the early 1970s, I've (to date) owned six more; three of them with Maccari springs. And although I've owned (and still own) springers with Vortek kits, no 124s with Vortek.
The Maccari spring and piston-seal in my current 124 was installed by (Airgunwerks) Dave Spade, and is the hottest-shooting 124 I've had. Despite my somewhat wide experience with both aftermarket spring options on multiple springers, I won't recommend one over the other.
Here are the chronograph results of my (current) Maccari sprung 124-
8.4 grain FX ~50 shots since Dave Slade Maccari installation, 15 shots- Low= 842, Hi= 857, ES= 15, SD= 4.5, Average= 849 FPS/13.5 FPE
Happy Shooting,
Ron
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