Some pay attention to Fe and think it's some really critical thing, others, like myself, know better.
My Fe levels are around .5-1.0 ppm on average.
About 5-10x more than PPS suggest, my PO4 is also about 5-10X more also, and the NO3 is similar, maybe 3-5X more.
See a pattern?
I think my point is that you can make any relative mixture of fertilizer for yourself and your own aquarium and it'll do pretty well
There's a great deal of talk about nutrients/fertilizers etc, however..........CO2 and light are FAR more important factors.
Generally I focus much more on those.
They will yield much better management over time no matter how you add fertilizers. If some obsession with the water column ppm's is your thing in planted aquariums, might I suggest a much simpler solution?
Use sediment fetrtilization by using soil based sediments with N and P included, like ADA or your own DIY soil, see other things such as worm castings etc.
Then there's much less need by plants from the water column, this allows you to use "less" in the water column and less issues if you forget to dose the water fertilizer since there is always a back up in the sediment.
Using lower light, say about 0.4 W/liter of aquarium of T5 lighting also will reduce demand from CO2 and for nutrients, making both easier.
Rather than focusing on managing nutrients carefully, adding these specific amounts, these basic methods make management of aquarium much easier and better over time.
There's a simple EI method using daily liquid dosing also:
Has more P and a general GH booster instead.
My own tanks, I add about 3:1 KNO3:KH2PO4, just what works nicely for myself.
So the point here is that you can modify and likely should to suit your own taste and routine. Personal habits play a larger role than whether one method "works better", so it's much more a human issue than anything.
Here's one of my own tanks: