Knee deep in first transmission rebuild, opinions welcomed.

[NickTransmissions]

@NickTransmissions morning, hope all is well. I have gotten to the rear sun gear (had to wait on a snap ring I thought I bagged) and I could have sworn I saw something about notching the sun gear but I can't for the life of me seem to find it. Any advisory would be greatly appreciated.

Here you go, man - all sorts of tips/pointers, including notching the sun gears: