Just to add my .02. Not a blade issue at all. Technique improvements will solve the problem I would think.
The best way to prevent bumps and ingrown hairs is to improve shaving technique. Any blade will work if your technique is solid. Your choice of blade comes down to what feels right to you. Some of my favorites include. Astra Superior Stainless, Rapira Super Stainless, Rapira Swedish Super Steel and Gillette Rubie Platinum Plus.