Sounds like a good plan on the 7310. Did you notice the saw being able to keep up better in the cut by removing the top plate? Seems that leaving the side plate would still have drag.
I don't really know, never payed attention to it.
I have a stock 115DL loop, so I could compare it to my hillbilly skip tooth loop if desired.
Yes, the"scoring teeth" will have drag, but they should no longer actively engage the wood.
I liked the idea of leaving them so that they, in theory, help clearing the chips.
I file them too as I file the other teeth, thus they should always stay a little bit shorter than the other teeth and in turn cause less drag.
Look at it like this:
- The scoring teeth should help carrying the chips out of the cut, they will cause drag but less than a full tooth. They should also no longer actively cut wood.
- On a regular skip tooth one has only half the cutters, as such each cutter is (in theory) left with carrying twice the amount of chips out of the cut due to the larger clearance between the individual teeth. While the cutter carry the chips through the cut the chips get "compacted" which in turn makes them resist movement thus causing drag.
It is basically a trade off, making a full complement loop less aggressive should work just as well as a skip tooth loop.
I don't really use my 36" B&C setup much, definitely insufficiently to worry about chip clearance.
The hillbilly skip tooth modification was more "play" than anything else.
My PS-7900 will pull a stock 115DL loop perfectly fine in oak.
I'd have to try and compare it against my other saws.