I think I've tried just about every lighting technique to shoot indoor basketball and I still can't get it right. I tried a single strobe bounced off the ceiling but it didn't give me enough light. I generally don't have the luxury of setting up strobes.
Today I thought I figured it out. I had my 550 on a bracket with a Sto-fen diffuser, ISO 800 but not shooting at the fastest synch speed to capture the ambient light figuring the flash would freeze the action so I wouldn't have to worry about it. I shot some at f/4 and some at f/5.6 with shutter speeds mostly of 1/90 and 1/125. The lighting was actually pretty balanced and didn't have any of the harsh flash lighting. Problem was the flash didn't freeze the action like I thought it would so almost every shot was too blurry. I was shooting with a 10D and 24-105 f/4L with IS so I'm guessing it's not my equipment.
When I used a faster shutter speed (1/250) I got the harsh light from the flash again. Should I push to ISO 1600 and 1/250? I really thought the flash would eliminate the need for the faster speed.
What am I missing?? I need help!

