Coiled sighters are super sensitive strike indicators. Your can find them in any outdoors store, but the are very often too stiff and thick. Smaller ones work much better, so, do it yourself with your preferred colores monofilament.

Amber nymphs imitate the insects in spring, the beginning of summer, and fall. Preferred at the dropper position but also works well at the point.

This is a perfect summertime little perdigon. Used in #18 and #16 size with 2.3 tungsten bead. The best option in hit summer days.