Do it.
I'm assuming that, like the rest of us, your 410 came with a Seldon Rodkicker but not with the gas spring that Seldon recommends for it. A CRAZY little way for hunter to save a few bucks. If this is the case, spend the extra bucks to put in the gas spring, this will allow you to ease the mainsail leach when sailing in light air, which makes a huge difference. The gas spring can be installed without tools in about ten minutes. Seldon has a somewhat zooey price scale for these springs, and you'll save considerable money purchasing yours through a boat-show salesdude rather than factory direct....... By the way, many of us use BOTH a topping lift and a sprung rigid vang. The topping lift serves double duty as a back-up main halyard, and is useful for transforming the boom into a crane. Run it through a sheave at the end of the boom and you can use it to retrieve overboard crew, heavy outboard engines, etc.