Well, as you've guessed, you can potentially get twice as many opinions as there are benders. But for me, YES, I do have both types. Partly this is due to the desire to have one closer to the pump bench for tipping, and another closer to the bending bench for splices. Sometimes the conditions dictate moving one to the other's spot depending upon the glass size and what I am trying to do. In my tiny portable shop that I do demos and classes with, the need is usually lessened and I can do nearly everything I need to with just the 500T. I do often use my 500T tipping torch for splices on small diameter tubing and it works fine for that. The go-to for tipping is definitely the 500T (none better in my opinion) ....for splices, I like the 228 size for small-ish stuff and the 81A for the bigger......I also have a few oddball hand torches (I am a collector/restorer/historian of vintage neon shop tools) and among them they run the gamut from small, to a giant that uses a 1/2" gas line to feed it.....I can only imagine what diameter glass Paul Bunyon was working with...but for what I usually do, the 500T and the 228 are the ones I use most often.
On a somewhat related note, if your torch has lost its handle, seriously consider making a proper replacement or even having a woodturner friend custom make one that is contoured how you want....the right fitting handle can make all the difference in how things go when you use a tool. (I simply supplied a rough sketch with dimensions to a friend and explained what I needed and he was able to turn them out for me and then I just did the fine fitment on the torches. They work great! One of the better investments I've made.)