Echoing other folks, bought these mainly to swap with existing stuff.
Here's the results....
Stage XI hollow 144 hangers with new Indy inverted KP baseplates. (54mm tall + 364 grams)
New mid 144 hangers with forged hollow baseplates. (49mm tall + 356 grams)
Both sets with Bones hards on back + meds on front. All nuts flush/a hair past nylock.
Correct bushing hardness with the inverted baseplates is a MUST. Especially if swapping to krux, which has slightly fewer threads than the indy kingpin. The nut embedded in the new indy baseplate def. has more threads than a reg kingpin nut, causing any kingpin to stop turning if cranked down beyond a certain point. (not going to attempt any madness of tooling extra threads on a krux kingpin, for 8 grams of weight savings)
After several sessions at the park, LOVE the hollow hanger/inverted baseplate. Great KP clearance, good pop right off the bat, and that smooth Indy feel. I'm used to stage VIIs so the height + weight was not an issue.
Will be trying out the mid hanger/forged baseplate next. Thinking of setting them up on a 8.3-8.5 football shape w/ some small wheels for a little low + wide early 90s action.
keep rollin' slap pals....