It's all good mate, just having a laugh.
The hard wire mod will feed a little more voltage to the pump for maximum flow potential. However you will loose the factory speed controll, thus you will be recirculating fuel constanlty... this heats the fuel up quicker.
Your stuttering wont be related to available fuel supply, unless your pump is seriously over or under pressurising the fuel system. Just put a fuel pressure gauge on and go for a burn.
It's more likely that the suction sock is blocked or not positioned correctly in the cradle, the electrical teminations on the pump are not correct or the nrv was replaced backwards etc... I would check all of these types of things before you go chopping apart your fuel pump loom.
By the sounds of things, I'd pay a pro to look at it... if it's leaning out and stuttering, your allready damaging your engine.
There can often be subtle things that will trip you up, this is where a professional will usually show they're worth- especially where important components are concerned.
Cheers
Justin