6max Openraise Chart too tight?

Hey Guys

i am playing the 6max SNG at 888 Poker, and i am using this Openraise Chart, i was wondering if this one may is too tight??

i am not so comfortable playing postflop Spots so thats why i prefer open tighter Range. In Fact at these Games Raises often get called and therefore i am finding myself out of Position often, Cbets get called a lot.

UTG: 77+,AJ+,KQ
HJ: 66+,ATs+,AJ+,KQo,QJs
CO: 44+,A8s+,AT+,KTs+,KJo+,QTs+,JTs
BU:22+,A2s+,A8o+,K9s+,KTo+,Q9s+,QTo+,J8s+,JTo+,T9s+,98s
SB: 22+,A2s+,A7o+,K7s+,K9o+,Q9s+,QTo+,J8s+,JTo+,T9s,98s

So what u think is this too tight ( loosing EV) or is it fine?

Thanks Tony