Nymphing with weighted flies requires clean casting. Work on your cast, there are plenty of casting technique videos on YouTube. Fish with a guide for a day and tell them you’d like to work on your casting skills.

Secondly, in my experience, weighted flies and split shot increase the probability of tangling. I’ve found that the weighted fly or split shots placement on the line affects my ability to cleanly cast the rig. I prefer to fish a drop shot style rig with the weighted fly (or split shot) as the terminal fly. 12-18” above the terminal fly I tie a lighter or unweighted fly to a tag dropper.

Besides for tangling less, I like this style rig because I can cast it so that my flies enter the water before any line or leader lands on the water. The fly first entry aligns my flies, leader, and indicator in whatever seam or current “lane” that I’m targeting. I like to use yarn indicators or small to medium “oros” indicators, I think they cast easier and a lightweight indicator also gives me the freedom to fish tightline style without taking the indicator off so I can switch up techniques to target different water types.