Unwashed ranged classes are a waste of time?

I never wore any int equipment to levelup and still don't wear anything because I don't think it's worth the hassle, all I've been leveling up with are the regular int stuff like zakum helm and deputy star/mark of naricain, and I was able to hp wash 30 times and could survive horntail before 150 with just a few hp equipment sub-ins. Now that I got enough hp to solo right pianus without hp equipment sub-ins at like 160, I don't feel that I need any more hp, especially because I don't hang around lyka, PB, etc.