If its that cheap try it. Timing may be a bit more critical and it will certainly not cast a great distance but it will likely work just fine for shorter casts. The old R.L. Winston 456 Traditional rod I built is slow and works best with a 5 wt but I will use a 4 wt when I am fishing small (brookies, panfish) and closer and the 5 or 6 wt when dealing with larger flies or wind.