4 Pot Better
Although, It's hard to say as I went from OEM on a DL650K7 to SS braided lines, Tokio 4 pot calipers, HH sintered pads, OEM MCyl. After doing this, and ex brake-in, I had a very strong brake dive and changed the front suspension substantially. Now, the dive is gone and the brakes seem much stronger in near max perf stops, and ordinary stops require less force. The main thing is that once the front is compressed and you keep adding more brake, the 4 pot keeps adding a lot of torque when the OEM 2 pot seems to stall out or seemed limited in the force it could apply. I too had to bleed plenty to get all the air out but that's ok. I got the calipers off a SV 1000 from EBay for about $220 but I found cheaper setups if I was willing to do complete overhaul of the calipers. With new lines, new pads, new dual banjo valve, 2 cans of new fluid, the whole mod was a little over $400.00. It seems a worthwhile safety upgrade. I do not think the braided SS lines made any difference. I believe OEM or SS lines carry the fluid in a rigid teflon tube and thus the SS braid adds nothing except the outside of the brake lines maybe more resistant to abrasion, although when I removed the OEM lines I never noted any sign of abrasion. When I bought the SS lines, I did not know this.