Re: looking for line recommendations
I'm going to go with Miss J. for the most part... although I am perplexed by a 1wt rod throwing a line that is essentially a 3.5wt well. If you have a shop near by that has some demo lines on reels, I would go play for a bit, preferably somewhere where you can wet cast.
The long med/fast 4wt is a bullseye for Rio Selective Trout, I would go with DT, but that's for my use, hard to say which would be best for you.
The 6wt is more open game... aside from the other recommendations, a Rio Bass or Clauser taper... maybe even an Airflow Sixth Sense, which in addition to the Wind Cutter is what I fish on my 690-4 SLT (med/fast). I'm not sure the front portion of the Wind Cutter taper is going to carry bulky wind resistant flies well, you may get some tip stall.
... But a lifelong journey.
I choose fly rods the same way I do women, motorcycles, and cowboy boots...
go with what ever feels good, and keep on hand as many as I can afford