I have been using a Traveller for years and it is a great vise. The stem supplied with the base is a bit short depending on your tying table height and the weight of the base is a little light for some applications and the O rings on the jaws do break down over time. Minnor shortfalls of a very nice piece of equipment. Buy some 3/8's drill rod from your local hardware store and drill and tap one end 10/32 and cut to what ever length you like. I had a table clamp type base from a previous vise and have made several stems to suit my needs. My experience with the O rings is get the Renzetti green O rings. The black rubber ones you can source from the plumbers are a short lived poor replacement. The factory O rings must be silicon or nitrile and perform much better for a longer period of time. My wife bought me a Presentation 4000 last xmas and it is thing of beauty - but to honest the Traveller does the same job quite nicely. It's like any tool, the more you use it - the more it will become your friend. Buy spare O rings and do yourself a big favour and get an OTT-LITE.