Glyphstone:<br/><br/>An Inner Sphere Ultra AC/20 is 15 tons and 10 crits. A Clan one is 12 tons and 8 crits. That's enough savings in both to add a Light PPC, which is 3 tons, 2 crits.<br/><br/>Personally I'm disinclined to allow customs at all in the game for a number of reasons, and this is one of them. It's your choice what you want to do, but that's my final word on the matter. You can take that or leave it as is