When you are shooting static images, the power of your lights isn't as critical. As long as you are using a good solid tripod and the objects are not moving or viberating (caused by not being on a solid platform), all you have to do is increase your exposure time. When I do light tent work of static objects, depth of field has a higher priority than shutter speed. I've sometimes taken shots that were 30 seconds or more long to get the results I wanted. So don't be afraid to go with a longer shutter speed to be able to increase your depth of field. Sometimes adding more lights or increasing the power throws the lighting off.
You didn't do too bad of a job on these. You do need to diffuse your light a bit more and spread it out. The dark areas of the casting reel are a bit dark. The brighter areas are lit pretty good so you don't want to add more light there. If you have to, take too shots, one metered for the dark areas and one for the light areas and merge them together in Photoshop.
Mike