I think you have written some interesting things, here are two comments that are hopefully useful to you: 1) Because your 2♣ opener is so often an actual suit instead of a random balanced hand, you should consider switching to a control style response scheme, perhaps even one where opener has the option to relay information about responder's hand. 2) I think if you are going to relay after opener rebids 2♠, you should bid 2N more often than you probably are right now. The extra space is worth a lot in my opinion, moreso than potential wrongsiding in some level of NT, which you are not even going to be playing that often. This is especially true if you have already responded 2♦ to show 6+ points, which means there is basically no way 3N is going down.