Since I'm just starting in fpv (I'm flying now with betafpv goggles borrowed from a friend) I though I would buy a pair of ev800d. Recently though I found a pair of used ev300d for a very good price...my concerns: is the latency still an issue and would I even notice being a beginner, also how immersive are them (general slim style goggles) compared to box goggles (I heard they are way more immersive than slim style). The fov on the ev300d should be 42⁰.