My $39 Shack charger has been fine for my park flyers so far. The Dr. is right I'm pushing the limits charging the 1500 mah Nicad packs on my XE2 wing.
The shack is selling the 10 amp model for $79.00 free shipping. If I see one for $59.00 free shipping I'd snap it up and sell my other one.
Tad