The flies are tied on US tubes that have weight, which means that they fish well from the moment the fly lands in the water. 5 cm wing length is tied on 6 mm tube, 8 cm wing on 8 mm tube and 11 cm wing length is tied on 13 mm US tube. US tubes are heavy enough to dive a little, but without being too heavy for the calmer parts. They also help the wing to swim well by pushing the body down from the wing. The Flashwing series is available in 5, 8 and 11 centimeter wing lengths for different fishing situations.
The 11cm long wing is suitable for larger rivers early in the season or at high water levels. 8 cm delivers well as an all-round size, even when the medium to small rivers are larger in the spring, or during rain floods. The 5 cm wing is a good joker to use when everyone else in the fishing area use classic tube flies without success. When the whole wing is in flash, it becomes more visible than flies with hair in their wings. For example the flash wing of 11 cm has the same visibility as hair wing tubes of 14-16 cm.
These tubes are fished with a loose hook. Steffen recommends using a tube as a hook guide on these flies that have a US tube. Preferably in the colors described under each pattern. On the large flies, we have the best success with a double tube hook. Guideline double tube #6 on the large ones over 8 cm so that the hook does not turn itself into the wing. On the medium and small flash wings, our best choice is the Guideline X-Strong triple hook #8-12.