I think there is a major confusion what the original Stargazer was like. I think nobody really knows except the creator of it. There are some imposters on the market.

There are many Oriental lilies that look like 'Stargazer' most people call any that are hot pink/magenta and white 'Stargazer'

L. speciosum rubrum is the same color as 'Stargazer' but the blooms are smaller and point down and sideways. In my garden it is a far better grower/performer.
'Black Beauty' is a hybrd from it that is absolutely outstanding.

I noticed the newer ones aren't as pretty as mine from a few vendors and the one I got them from originally.

But mine I didn't divide after 4 years, and this year I only got one bloom at the top, no multiple, gorgeous blooms as in other years. I also sprinkled Bloom Booster around late last spring which did seem to make the leaves look healthier.

So I was going to dig up as many bulbs and bulblets as I can of both Stargazer and the nearby Aubade (lost a few of the latter). It's rained so I can dig there again much more easily plus they are starting to turn brown (that's normal for this time of year in my zone).

What should I do with the bulbs? Are they spent? I'd buy more and plant them somewhere else but not if I don't get a good match to what I had. So is there's any way to rejuvenate mine or should I just give up on them?