The things with Shrey vs. Masuri is that yes without a doubt the Shrey helmets are lighter than most Masuri's (they were obviously targeted at the Vision Series), theres no doubting that but the build quality is inferior by far on the Shrey. The USP is the lightness and to comply with the new safety standards and to maintain this they are just about scrapping through the tests, they are good enough to just pass but they are nowhere near the safety standard of Masuri. Its no coincidence that many pros wearing Shrey's are having concussions after impacts to the head as they aren't strong enough for professional cricket. With the new ranges from Masuri amongst others Shrey are really risking losing their market position as they aren't the lightest helmets anymore and they are not even close to the safest. I really beleive that Masuri are starting to take the place of Shrey with the Original Series MkII. With Masuri if you want a safe, classic look and fairly light helmet the MkII could be for you (especially as you can fit a stem guard on them as well) and if you aren't so worried about the weight then the Vision Series is probably the way to go and if you can the titanium models would be a great choice.