The main lesson I learned here is this: Vendors Websense and F5 will both tell you all day that to load balance Websense, that LTM is the officially supported solution. The whitepaper tells you to use the F5 iApp. This is all great, but what I learned is that the original iApp had bugs, and these bugs prevented any of it from working correctly at all. I burned a great deal of time on this problem. When both vendors both point to a certain officially supported piece of technology as the official way to do so something, then it's easy to fall into the trap of assuming that solution will work. As with any software, don't assume it is bug-free, and don't assume the config generated by the iApp is problem free.