I bought both the big and small LN router planes a few months ago thinking they would be seldom used. I was right about the small one, but I am using the big one often. What a neat tool!
I too have both large and small LN routers. The small one is great for deepening 1/4" grooves for drawer and box bottoms...certainly beats tinkering with the electric router and faster. Other great LN tools for modifying the above are the side rabbet planes.
For those of us with small workshops where things such as electric routers, etc, have to be unpacked and set up in order to complete what are often quite simple tasks; tools such as a router plane are very often so much quicker for basic joinery tasks. Cleaner and quieter too!
I have the small router plane and use it often making furniture. I have thought about adding a larger one, just have not done so. The small one has been a perfect size for lots of projects.
I got the Lee Valley version with a few different size blades a while back. Among other things, I also use it for flattening out the bottoms of saw cut grooves.
I picked a great trick from a video on half blind dovetails.
I use a Veritas marking gauge to deeply scribe a line to mark the depth of the dovetails. The line is on the inside of the joint so it doesn’t show.
I use the large router plane to make a shallow rebate. I cut up to the scribed line. It’s deep enough so the rebate is stopped at the line. If necessary, I can clean up the rebate edge with the marking gauge.
I then cut out the dovetail waste as usual. I clamp the pin board vertically in my Moxon vise and butt the dovetail board horizontally against the pin board. The rebate creates a ledge that makes it simple to perfectly mark the pin board.
Birdhunter, I have a less invasive method that the "140 trick" - so named as it was made popular by Rob Cosman when he used a skew block plane to make the rebate.
Instead, use three layers of blue tape to create a fence ...
This makes it easier to align and control the pin board when transferring marks ...
Those dovetails look very good. I took a Fundamentals of Wood Working and for two weeks thats all we did was cut half-blind and Through-Dovetails. Never used the Router Plane except when we started hand-cut Mortise and Tenons. That Router plane is great for sizing the thickness of the tennon.