Right, well, done my magazine, what a fiddly, decking, ball ache, lol, that's a couple of hours of my life I'm not going to get back. Think it's worth doing though, should definitely minimise any feed issues or risk of jams with FS rounds.
You might want to watch a couple of vids first though,
and.
As per the first video, my follower certainly had a rough, proud spot from the injection moulding manufacturing process. And as per the second vid mine wasn't exactly tight, but wasn't free and easy either, and if you played around with it, it would occasionally stick before it reached the end of the feed nozzle, which would certainly potentially jam the last round in the mag.
Dremeled, sanded and polished.
The Helix spring is about 5-6cm shorter then the standard spring.
The Helix spring is the same diameter along it's entire length.
The standard spring is tapered inwards at the follower end so it sits inside the follower.
Considering the taper and the first video testing I decided to go with both springs.
I put the tapered end of the standard spring inside the Helix spring and turned so they twisted together.
The cable is a pain in the ass to deal with lol, it has a brass crimp on the ratchet end and a brass guide and a knot tied in it at the follower end.
That looks a lot bigger than it is, probably 1mm ish cable. I managed to undo the knot with the intention of re-using the cable. But, this cable is, I think, stainless steel and plastic coated, and when a knot is tied in it this damages the plastic coating, so when the knot is undone the plastic coating comes away and then the steel cable starts to fray.
Luckily I use very similar cable at work and happen to have some off cuts at home, my cable is stainless steel and plastic coated and is ever so very slightly thicker, may be 1.5mm ish rather then the original 1mm ish. (I didn't measure, lol)
So I replaced the cable, the only issue I had with this is, probably because it is slightly thicker, it could get jammed under the guide over the reel in the winder, so I left this guide out, I don't think it is needed.
I started with 45cm of cable but this was longer than needed, and only makes it harder to wind the mag because there is limited space on the reel.
I have plenty of cable if you decide to do this, will give you some next week.
I shortened the cable until it was just long enough, with the ratchet/reel fully unwound to allow the follower to go just a couple mm further than the end of the feed nozzle. Any longer and it's just wasting space on the cable reel.
Was going to take more pics of this final assembly stage but need six hands to get it all back in, lol.
I didn't take any pics of it, but as per second video, where the round transitions from the mag body to the nozzle body there is a very noticeable lip, which could potentially tip the nose of a FS round down, and assist in creating a jam. So as per video this was dremeled, sanded and polished.
Seems to feed perfectly now, so I think well with doing for our purpose, which is purely feeding hard reusable FS rounds, it is probably to much spring pressure for frangible paintballs.
Only tested by hand though, will need to run a few mags through the marker to be 100%, still waiting on DPD to deliver my shoosher.
. No velocity is being increased as no need, it’s for plinking fun.
. So can’t use either of the 22mm threaded suppressor or flash hider
. Threads finer on the hammer head. 
. By that I mean it’s loud, like LOUD LOUD 
