1) I'd still attach slings, thought maybe not eactly the kind you might be thinking of. Rather than a 3-point or shoulder sling, I'd get something like a Chalker harness. Then just run a strap from each shoulder point to the stock ring on the back of the A-5. Think of the lobby shoot-out scene in The Matrix when Neo first walks past the magnetometer. Notice how he has the MP5's hanging from his shoulders? It's kind of the same thing. If you make the straps the right length, they'll be taught when you extend your arms and you can use that tension to stabilize your shot. If it works for you, you might not need to make braces coming off the bottom of the grips. And since they're flexible, as opposed to stiff braces, it will be easier to shoot in tight spaces, around corners, etc. Also they can hang from the straps during the down time between games, something that anyone who has played with a remote line can appreciate.
2) Personally, I'd recommend a response trigger over an e-grip. I recognize both are very nice and can be great assets and I don't want to spark a debate. But an RT never needs batteries and are legal on any field so they can be a little more convenient. But that's just my opinion and it's down to your personal preference.
3) What's the weight of the feed lines from the Turtleback? If you've played with a remote tank, then you know that the tension in the coil hose can add to the weight of a marker. Since you're holding it with two hands and keeping the marker tight to your body, you usually don't notice it much when you're playing though. I'm just thinking that the combined weight of an air line and ball feed tube will feel much heavier hanging from arms length rather than coming under your arm. Then again if you can rig the feed tubes to come up over your shoulders that might be more ergonomic. But if it's too much, I'd definitely go with the tac-caps. I've got one cut all the way down that I use when I want a low profile in a sniper type role. It holds 30 balls and I don't have to reload more than twice a match. Depending on your ammo appetite, two 50 capacity tac caps might serve pretty well.
4) Go with N2 tanks. Yes, it's initially more expensive than CO2 and they're bulkier, but you save in the lang haul. They can be refilled cheaper, often for free, give you more shots per tank, and have more consitant gas performance. They're also easier on the internals of your gun, never freezing it or blowing O-rings. Also, N2 doesn't need regulators like CO2.
That's all I have right now. Post some updates when your plan starts coming together.
This post has been edited by Jaron: 28 July 2006 - 05:26 PM