I have the sport pattern and a pair of asymmetricals that don't feel any different for me. Also, as far as I know I don't have to jump sizes diepending on the style. I haven't tried any of the shield tips but the traditional, asymmetrical and sport all fit the same for me. I don't own the traditional style but the other two fit the same on my foot.
Just gonna hop in here real quick to clarify. When 19 was in last week, we had a chance to try on a series of different pattern/size (and even category ... SYNRG) combinations.
Here's a quick recap what we found. Rick has a very high instep, which means there is a lot of volume on the top of the foot. This should not be confused with a high arch, which is something entirely different. Normally, the bone on the top of the foot tends to be more pronounced for someone with a high instep, which can make an individual very sensitive to pattern and lace configurations. I know where 19 is coming from because I have a high instep myself.
During the development of FJ ICON, we made the decision for optics reasons, to slightly vary the toe shape of the traditional FJ ICON shoes (52005, 52013, 52047, 52054) vs the rest of the styles in the category. We used the Laser Last for the traditionals, a last that we have had in the line for quite some time now. The other styles got the new FJ ICON Laser Last. The shape is almost identical, except that the toe character on the contemporary styles is slightly squared off.
Here are the definitions on the FootJoy.com ...
Laser Last (52005, 52013, 52047, 52054)
Full rounded toe character, standard fit across forefoot and instep, with a slightly narrow heel.
FJ ICON Laser Last
Contemporary, slightly square toe character, standard fit across forefoot and instep, with a slightly narrow heel.
19 was previously a 8.5E and fit perfectly into a 8.5W in the FJ ICON Laser Lasted shoes. The Laser Lasted traditional styles just didn't work on his high instep. This is not common, but it happens. We slipped him into the sport saddle just to confirm that the FJ ICON Laser Last was for him ... and it was. He's a perfect 8.5W in the FJ ICON Laser Last. Good news was that he played in the shoes all day and had great luck with the comfort and fit.
We also brought in a pair of SYNR-G shoes to test and he slid perfectly into an 8.5M. This may seem odd, but is actually an expected result. 19 is an E width, which is really between a Medium and a Wide. The lace scheme on 53918 is called a "U-throat", a roomy athletically inspired lace cut. This is different from the lacing system that is standard on all FJ ICON shoes, referred to as a "Bal" lacing scheme (where the laces are wide at the top of the shoe and comes down to a "V" at the bottom of the instep). When you factor the roomier lace scheme and the memory foam in the collar and the tongue, a 8.5M was the best fit for 19 in SYNR-G.
This may sound complex, but in the end, it all comes down to finding the right fit no matter what. We take every step to ensure the fit across all FJ shoes is consistent, but there are slight variations for looks, pattern and style that can make a difference on some (not all, not most) people.
Hope this helps.