Surprised to see no replies. I know this is a "rare'ish" model but I figured somebody on here would have experience with this situation. I talked to a fellow competitor that is using the 110S for Silhouette and he confirmed that his is also different compared to his standard 110 with flat rear.
I ended up milling 0.027" off the underside of the model 61 rear base to get it in line with the front base. Just wanted to post my results and "fix" in case another shooter finds this post while searching.
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