Slim fins are NOT for scuba, they are for exercise swimming only.
The Pro model ForceFin is an absolutely perfect for diving. just make sure you size them correctly for the booties that you wear by trying them on. the sizing for ForceFins really does not correlate to your foot size and really only to the circumference of your foot/boot combo. They should fit comfortably loose, too tight and your foot will be uncomfortable quickly. After years of fitting people to ForceFins most people can wear an XL with an average bootie, either with or without a comfort instep, larger feet or heavier soled booties may require the extra width of the XXL
BTW, since your not far from me, I would be happy to give you a chance to try any of my collection. I have nearly every size and many styles for you to try. Columbia River diving is awesome this time of year and were diving this weekend