Mattachine
Adventurer
So I hope for a baseline of relatively low cap, and then a module for added wahoo which includes rules for uncapped attributes and class, feat and magic options for raising attributes. Since scaling up has always been easier than scaling down.
Cheers
Given the mess most editions have made of high-level and high-level play, I think this assertion (scaling up is easier) is demonstrably false.
Scaling up or down is difficult if the system is made such that it does not account for the possibility of scaling.