Would an S1 spot be effective down in the bumper? One reason I was going to go with the wide cornering.
Not as effective as a Squadron.
You need to ask yourself appropriate questions and let the answers dictate what you buy. This can save you money by not buying more than you really need, which is particularly true with BD since they are at the top of the price pyramid. Just because there are three light kits out there doesn't mean you need three different lights.
The appropriate questions are what you want the lights to accomplish. Do you just want to fill the empty fog pockets so it looks good and throw some light out to boot or do you have specific goals you want to achieve? Those goals could be to improve side of the road illumination, improve inclement condition visibility (fog/dust/snow) or improve down road visibility. Do you plan to use them off road or only on the street? Once you answer these questions honestly, figure out how to best accomplish them. That's where these forums can be really helpful. The vendors here are particularly knowledgeable and can guide you well (I am not a vendor). The SAE and the S1 are new BD products so not many of us have experience with them, but the basic rules still apply.
I found the stock LEDs on my Raptor to have poor side illumination near field and not spectacular far illumination either. I have a place in the mountains and they do a really poor job of providing visibility in the dark twisty mountain roads. All of my other cars have adaptive lights (swivel with steering wheel angle input) and this truck really needs it! So my goal was to improve side of the road near field illumination as well as some down range lumens. When I bought my setup, Rigid was the only SAE available but it isn't the same quality or effectiveness as BD, so I chose to use BD anyway. 90+% of my night driving is in town and I never turn them on because they are extremely bright to oncoming traffic. I am considering a pair of SAE so I can actually use them more often. I have 2k in lighting that I rarely use. When I do use it, however, they do accomplish what I set out to accomplish.
For on road use only, then SAE is what you need to build upon as a base. That covers wide cornering and you probably won't need anything else to illuminate the sides of the road in front of you but you won't know until you try really. The main reason to add an S1 over any Squadron is for a space restriction. FRL commissioned them to fill the small cutout of their triple bezel. I don't know how effective it is at illuminating the side of the road but they will shoot you straight if you ask them. I would start with a triple light mounting bracket and a pair of SAE for w/c duties and on road use. If you do drive where there is no oncoming traffic, then add a second pair of Squadron in spot (or driving combo if SAE doesn't provide enough lateral illumination for you) for situations where you don't have oncoming traffic and feel you need more light. Then, since you have a triple mount bracket, you can fill in any deficiencies you feel you have with a 3rd pair.
If you off road and need more long range illumination, then A-pillar mounts with spots of some variety would be most effective.
I hope this helps and gives you some more to ponder.
