So the newest release of our HQ combined with the Swarmlord is one of my favourite looking models. Unfortunately the Scything Talon feet (really just extended his hooves if you look closely) restrict to one other weapon option. This has worked fine for me because I immediately figured out the value of the although somewhat cumbersome Fleshborer Hive Conversion, to be counts as Brainleech Devourers. I just smashed those on and was content with that.
Trying to get the army all painted it came to the point of whether to magnetize/pin/glue options. Which has been the better option for you and any reasons as to why?