Well, just my opinion, but if the reason you're not taking the knuckle off to work on it is that you don't want to need an alignment afterwards, I would think that all that force from the slide hammer would call that into question -- how can you be sure you're not changing the knuckle-to-strut alignment? If you google for a "Hub Shark", you might get some ideas about how to adapt the HF tool to mimic it -- it involves only pressing actions, no sharp blows. I was thinking about getting the HF tool myself, would be interested in what you think of it when you're done. But just before I did my Jetta bearing, I had to do bearings on our Saturn, and even the shop couldn't get them out just by using their press; they had to cut the inner races out with a torch -- which is precision work in this case, because you don't want to warp the knuckle.