I have had a few Dremel tools over the years. They are great but my problem has always been that I want to use 1/4 inch carbide bits... Mostly to take off more wood faster when roughing out a stick. So I decided to upgrade to a Foredom tool. I guess there are two versions available. The TR which is a 1/6HP which is also reversible. Is that a huge advantage? I'm thinking maybe to throw dust away from me? Thoughts on this? The second version is the TX... This one is a 1/3HP motor (and I assume it has more power) but is not reversible. Is the extra power a bigger advantage? I am also interesting in the power chisel carving handle. Does it work on both models? Just interested in your thoughts before I purchase... My only other option is to buy both but that is not an option financially until next summer. Thanks for any replies!