Wildcats and improved cartridges are never worth the effort really but we are not a practical bunch are we.
But think about this. You gain valuable knowledge about things such as bullet seating and powder burn rates and just overall shooting/loading practices. If you want it for a gain over somthing the factory has to offer it just won't happen. Everything is pretty much covered. I think everyone should play around with a wildcat it gives us somthing to do the other 11 months of the year...