I can't comment on the 7485, however I purchased the 7491RS to rip face frames. I also grew tired of ripping face frames with my track saw and no longer have the room for a cabinet saw. The 7491RS has been great for that purpose. I have never used the stock blade. I use Forrest full kerf blades from my old unisaw and the DeWalt spins it fine. I have only ripped 5/4 maple and walnut, however the saw did fine.
I added a tall, long auxiliary fence that simply clamps to the OEM fence and am happy with the results. Pic below.
Many have discussed the tradeoffs with portable job site saws and their points are valid. I was initially discouraged about the 7491RS but purchased one anyway. Glad I did. It is way more capable than many unfamiliar with this model claim.
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