hello, I'm wondering what the c25 and c21 caps are on the ultra xl etc. the pcb board diagram says they are .1 so I figured that means .1uf but when I ordered ODs they were huge, I mean GIANT! So, does anyone know what the deal is? I figure they are 50v. what kind of cap would be an upgrade? I mean I know that the ods and sozos are etc but I mean is it worth it to get another 50v cap?