I want to add my opinion before you do this... it doesn't make sense to try and change the ticker of GlideSEC on C-Cex from GLIDE to XGS because you cannot change the asset name in the NXT ecosystem and this might confuse traders even further. Offering GlideCOIN as XGC should be enough to differentiate the two projects if you plan on having both listed on Bitcoin-based exchanges. Using "X" in the ticker is traditionally used in the case of coins, so fine for GlideCoin but being that GlideSEC is an NXT asset it doesn't follow traditional unspoken standards to change GlideSEC's ticker.