I was in the same boat as you a few months ago. Ultimately, due to my space constraints, I went with the T4. I wanted the ability where I could stash it away when not in use, and be able to travel with it if needed. I've already been able to take it to my brothers house and do all of his knives when I visited him for the weekend, which it somewhat convenient to carry (I could find a better solution). I wish I had a dedicated workstation where I could keep it out 24/7, as pulling it out to touch up a knife can be somewhat of a pain. My work schedule is quite hectic, and I'm constantly in a state of exhaustion, so it often becomes a tomorrow job unless I can plan on sharpening a few knives (Then it becomes fun). My newest primary chef knife could use a good hone, but to take out the T4, set it up, and put it back could easily turn into an hour or two with all of the side projects I find. I'd want to see what else I could hone, and get those done. Then I'd probably notice the wheel is slightly out of round, so I'd consider truing it. I'd end up getting tired and then telling myself I'd put it away in the morning. You see where this is going.
My only major gripe, or frustration, would be the size of the honing wheel. When using a FVB to hone, a small knife (Under 3-4"), seems to not work on the distal edge so much. The curvature of the wheel is fairly great, so when you get to the tip of the knife, between the curve of the knife and the roundness of the wheel, the degree to which you hone rises significantly I believe. I'll attempt to get some pictures tonight to show further what I mean. It's not a deal breaker, but it is a consideration to anyone who plans to use a FVB.
Thankfully we are considering the purchase of a larger home in the near future. Our new home will definitely have a workshop area for me to have my tools and such so I'll be able to have my tormek at a dedicated workstation and always available. At that time, I may consider looking at a T8 at that time. It'd be unnecessary, but I do a lot of unnecessary things! If I ever can get a small sharpening gig on the side set up, it'd be good to have a second machine available. And by sharpening gig, I'm talking small time, like doing it for fun when I have time.
My only major gripe, or frustration, would be the size of the honing wheel. When using a FVB to hone, a small knife (Under 3-4"), seems to not work on the distal edge so much. The curvature of the wheel is fairly great, so when you get to the tip of the knife, between the curve of the knife and the roundness of the wheel, the degree to which you hone rises significantly I believe. I'll attempt to get some pictures tonight to show further what I mean. It's not a deal breaker, but it is a consideration to anyone who plans to use a FVB.
Thankfully we are considering the purchase of a larger home in the near future. Our new home will definitely have a workshop area for me to have my tools and such so I'll be able to have my tormek at a dedicated workstation and always available. At that time, I may consider looking at a T8 at that time. It'd be unnecessary, but I do a lot of unnecessary things! If I ever can get a small sharpening gig on the side set up, it'd be good to have a second machine available. And by sharpening gig, I'm talking small time, like doing it for fun when I have time.