I use the Xuros very often, they produce either an inside or outside, perfectly formed shaped 'wiggle'- exactly what is needed for resistors (up to about 2 watt lead thickness), to ensure the expansion/contraction cycles don't crack the solder. You can get a consistent spacing for raised components and keep them elevated to prevent pcb discolouration from heat.
The ceramic insulators are old hat and IMO, if the standoff is required for heat reasons, the lead should also have some expansion room in the form of an 's' to prevent solder land cracking and dry joints.
The benefit of these little tools is the perfect consistency and straight lead in/out before and after the form. They have four blades that work together to produce the form you see in the pic below.
Annnnd now I just gootttaaa have them .....:yes: