Extra hollow or singing razors can be tough on new straight users because their very thin edge can flex and dig upon catching on hairs when not sufficiently sharp. A new straight user will often not yet have developed the feeling and razor control skills needed to avoid a nick when such razors start to catch, and may also have not yet developed the stropping skills needed to keep such a razor as sharp as it needs to be. Full or near wedge grinds are not needed to avoid this issue, but the thinnest very hollow grinds should be avoided until skills are developed. Stainless steel blades such as the vintage Henckels Friodurs are stiffer than carbon blades, but can be a bit more difficult to keep shave ready. Round points are the safest choice, but a factory muted square point, Spanish point, or other rounded point may also be OK. The type of point to shun is the spike which is a square pointed razor with its edge corner comming to a sharp 90 degree angle. This corner (point) will easily penetrate or slice any skin that it touches (don't ask how I know) such as an earlobe, nose, or curve of ones jaw or cheek so ones attention must be focused on the location of the spike point at all times. I have a spike or two, but rarely use them because I would rather focus more intently on my razor angle, pressure, skin stretching, and direction of grain. The safest choice may be a 6/8 round point because it is not too wide or heavy and the angle is easy to control. Very narrow blades less than 5/8 can be hard to control. The most popular widths are 5/8 and 6/8 and one can find more 5/8 or 6/8 vintage razors than any other widths. I shave with razors from 5/8 to 7/8 and reach for my round or Spanish point Friodurs most often because they have stiff enough grinds and are very forgiving in use. Any quality round point 5/8 or 6/8 having a stiffer hollow grind should work as well.