I prefer the support offered when drilling from behind, as well as the feel. If the tailstock does slip it wouldn't be bad. If the toolpost turns with a drill in the work stuff is going to get weird or bad. I also had the scale and material on hand so time was my only investment. I do this for experience, so I'm calling it a free learning project. If I went the toolpost direction I would need to buy the toolholder/chuck or a chuck, and materials to build one. If I come across the materials, I might build one some day. It would replace the toolpost, and the chuck would be in the middle of the block that replaces it so it would bear straight back on the carriage when drilling. For now this will get me past the deep drilling stage of my current project and expand the ready capabilities of my scale. One of these days I'm liable to fit it to the compound, and possibly the tailstock in a more common fashion. Heck before I'm done I'll have to refer to pics here to remember what bracket does what.