Well int bow is generally pretty weak, but usually when I've done it, just been going for light max capped & cold fire mixed if there's normal chn masteries.. for example 110cap 110 light, 58 cold 52 fire & garments since I've only used them as bots, but guess prot is better.
Edit: About cold max btw. don't you think it's pretty useless even if it's your "main" char ? Like literally you're dead the moment snow shield ends anyway.