The WI 100 and WI 145 point lists were based on when it was US 41 instead of I-41. I didn't want to add labels for the sake of adding labels (also chasing down exit #s), and doing a US41->I-41 change plus hidden point for
every route that intersects US 41 between Milwaukee and Green Bay. The only one I did this for was US 45 because of its intertwining nature.
I think the sum of your changes for WI 100 itself would be US45_S->I-41(46), US41/175->I-41(47A), WI145_S1->I-41(47B), WI145_N1->I-41(48), US41/74->I-41(50), and WI145_N2->WI145. All but two of those points are in use.
There's an additional wrinkle in the WI 145 list: The points are on the mainline but not purely corresponding to the exit locations. US41/45_N is in the middle of an exit for both NB and SB 145 to NB and SB 41. It's signed on I-41 as exit 48.
But the long offramp from SB 41 to SB 145, which joins mainline 145 closer to Good Hope Road, is signed from 41 as exit 48
too. On the list for I-41, I've called the equivalent point 48A to differentiate, because it also is meant for the onramp from NB 145 to NB 41. So US41/45_S->I-41(48A) and US41/45_N->I-41(48), but both those old labels are in use.
As for the label style on the I-41 list, that's a direct C&P from US 41, in an attempt to simplify it for everyone (and, admittedly, myself). FWIW, there are two points on the I-894 segment and three on the I-94 segment in use as I-41 line entries right now.
In sum, because of the unique nature of the creation of I-41, I left most existing structures alone because I did not think the expense in time was worth the benefit. If there's a demand that every point absolutely must be relabeled to conform to interstate standards, I'll do it but it's not going to be instantaneous, and it will result in the creation of dozens of hidden-point labels.
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http://tm.teresco.org/logs/pointsinuse.log for future reference, though I'm not sure where to go to find whose log file has them.