I think this type of jig would be best used on a bandsaw. Align it so the roller is close to the blade and push the wood against the roller. As long as the board was fed in reasonably straight (fence or not) you'ld get strips that were very close to perfect. A short guide (or a fence) on the left side (the same side as the roller, but before the roller, would then make more sense as it would help keep the board straight as it was fed into the blade.

With a table saw I think you are trading the advantages of a long fence for the advantage of having the cut strip not be immediately trapped between the sawblade and the fence. You've done a nice job, but there is a simpler way to manage this. Look at the split fence idea found on shapers and router tables. Simply clamping a piece of 1x4 or 1x6 stock along the face of your fence, stopping it a fraction of an inch before the blade, and 1/4 inch (or the thickness of one strip) to the right of the blade, would give you a fixed fence with about 3/4 of an inch of "relief" for the strip to fall into after it was cut.

As it is, you have a rigidly fixed fence on the right side of the board, and a fixed roller on the left, with pressure being put on the roller by the fence's action on the wood. Your stock has to be very even in width along its entire length. If you hit a wide spot in the wood, or the board tapers a bit, you get extra pressure on the roller -- because that fence is pretty well locked down -- and the wood could jam in feeding. That's dangerous.

If you hit a narrow spot in your board, or the board tapers a bit, You'll get a thinner strip as there is no "springyness" in that fence to put the board against the roller, and ensure a proper thickness strip. f you bow to the temptation to force the board away from the fence to maintain strip thickness you lose the control of the fence face, and that can be as dangerous as trying to rip a board freehand, without a fence.

Not trying to rain on your parade, but I do want you to be careful with this. You'll need all your fingers to get a good grip on your paddle.

PGJ