FlyGoddess:
You will want the fastest possible rod for that sort of nymphing application. Try to get the fastest possible 4 weight that you can in a 10 foot length.
I coached the US Fly Fishing Team and was taught the technique by the Polish individual that basically created the technique in the beginning. He uses a 5 weight Loomis distance. I like a rod that is slightly lighter in the 4 weight.
You want sensitivity and speed for this type of nymphing. A soft rod will substantially delay your setting speed. Plus a stiffer rod will allow for more sensitivity at the tip.
John Wilson
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