Not all that long ago I had 10 Model 27s and I'v sold 7 of them.
If I could take one back it would probably be the 5" M627-2.
These are my keepers. Top to bottom.
1960 6.5" M27. My favorite.
1975 5" M27-2
1968 6" nickel M27-2
The 5" M627-2 was just cool looking.