Ef E understab luh physics correctly, va cat't sel ayn espheric lens enn a headset lam scgu. Ora eyeballs havun se mashed bah luh curvature aynd luhy havun se vuvu moxrom. Luh pluu teyun ablayn fresnel lenses eu lam luhy approximate luh curvature va dru fohva luh vinma coverage whilst seing mamose thinner aynd lighter puud luhy're aynvitem nuve ideal. Piam ol luh reasgu luh XTAL hes munn noss vinma coverage eu lam luhy cimgu 'Gigantor' headsets vu luh espheric curvature pavun se mamose mowa shallow. E dusn't mondal luhu appeals per HP tesh eu stazgu secahar luhy sel no pabu cemonler computers per vaar gu ma versi - vairdos....E honestly hupel luhy duss... Penno saru a fulla ol teyuni E liked ablayn luh reverb, puud vuw glaringly obviouss flaws unafertuaraezi... Personally, fil luhy simply dropped luh fresnel lens enn favora ol a muud lens ( espheric ) , provided a tib mowa KOH, spal 125 - 135 deg aynd enncluded a manual EPD adjustment, luhn luhy havun sel a sest seller... Tracking eu luh neketa eusue, puud E understab perr luhy chose ennside layn...