I was well aware that Dorian made changes to their holders, lucky for me I had no idea they made changes as often as they did. I was set on getting a Dorian SQCTP wedge, that's what I bought & I absolutely love it, no regret, & is what I would buy again if i had to do it all over. I've used older cam lock Dorians, Aloris, DTM, & piston Armstrong QCTPs, the Dorian wedge is by far my favorite. I decided to not purchase the FTB set & went with the tool post only. I was going to buy Aloris holders.
Didn't end up that way, I couldn't afford Aloris holders for how many & how fast I wanted them. I went with import holders, still no regrets. I have so many now & enough, I don't see myself swapping out for Aloris holders either. I'm not a fan of how Dorian tries to be "innovative" & make changes to their holders so I don't buy them. The only Dorian holders I like & buy are their current boring bar holders. They are truly "indexable" unlike the Aloris ones & others. But who knows, they may change as well & they were a different style in the past.
I have a Dorian parting blade holder similar to Alan's mentioned in the OP but I bought it used. It must have been changed & the one I have must be older cause the one I have works perfectly fine with my BXA on a 12x36.
I have only dealt with Dorian once on the phone but it was a good experience. The CS rep had no idea what I was talking about but she kindly transfered me to one of their engineers who was very helpful. He worked with the distributor I was dealing with. Got my issue quickly resolved. Most manufacturers won't even let you talk to one of their engineers.
I agree with Mike, can't blame a company just on one or two CS reps. I worked for a large electronics repair depot, we had CS reps that were awesome, then there were the ones that weren't. Unfortunately, people are going to be people.
Same with places like Grizzly, some people have great experiences with their CS, some don't. I've had the same off & on experiences with Amazon. When a company is large enough & they have a considerable size CS dept, not all of them are going to be as helpful or nice as you hope for.
Think about this, not to be sexist but most CS reps are women. How many female CS reps do you think are out there that even has machining related knowledge? It can't always be a requirement to get the job to have the knowledge so they have to learn overtime. Sometimes it's hard, sometimes people catch on quick, sometimes, they never do. I have seen it.