I looked at the Carba-Tec and then I went to Harbor Freight and noticed that they sell a lathe that is identical! With HF's 20% off coupon, I purchased the lathe plus their extended warranty for less than $150. I am very pleased with the HF lathe. I am sure you will enjoy the VS, as I do. It has plenty of power for pens and pencils and I haven't had any problems or performance issues with the unit. I have never made a stopper, but I cannot imagine a problem. Also, one of the other reasons I picked this lathe is that it weighed less than 50 lbs. I have small shop and need to move equipment around. In my opinion it was just too hard to move a 100 lb. lathe.
I hope my experience helps you with your decision. I am sure you will enjoy your lathe, no matter which one you choose.