I'm going grouse hunting for a week in Canada. Guess what? I'm taking an Ithaca Classic Doubles 4ES 28ga. and an RBL-28 as the rainy day gun.
Both are great guns that I shoot remarkably well. That has everything to due with modern stock dimensions and great balance.
The inference in many of the posts is that the RBL is not up to par with many of the older "Classics". I would suggest that the RBL is better on many levels.
If there is a problem, guess what, I send it to CSMC and have it back in a week N/C.