[AndMetal]

First of all, I always find the CVS Browse feature on Sourceforge.net AWESOME for researching stuff like this. A direct link to the main stuff for the Emu can be found here.

It looks like the data type in the packet is a float.

common/eq_packet_structs.h:

  199 struct Spawn_Struct {
  200 /*0000*/ uint8 unknown0000;
  201 /*0001*/ uint8  gm;             // 0=no, 1=gm
  202 /*0002*/ uint8 unknown0003;
  203 /*0003*/ int8   aaitle;       // 0=none, 1=general, 2=archtype, 3=class
  204 /*0004*/ uint8 unknown0004;
  205 /*0005*/ uint8  anon;           // 0=normal, 1=anon, 2=roleplay
  206 /*0006*/ uint8  face;	          // Face id for players
  207 /*0007*/ char     name[64];       // Player's Name
  208 /*0071*/ int16  deity;          // Player's Deity
  209 /*0073*/ uint16 unknown0073;
  210 /*0075*/ float    size;           // Model size

Here is the code for the command itself:

zone/command.cpp

 2273 void command_size(Client *c, const Seperator *sep)
 2274 {
 2275 	if (!sep->IsNumber(1))
 2276 		c->Message(0, "Usage: #size [0 - 255]");
 2277 	else {
 2278 		float newsize = atof(sep->arg[1]);
 2279 		if (newsize > 255)
 2280 			c->Message(0, "Error: #size: Size can not be greater than 255.");
 2281 		else if (newsize < 0)
 2282 			c->Message(0, "Error: #size: Size can not be less than 0.");
 2283 		else
 2284 			if (c->GetTarget())
 2285 				c->GetTarget()->ChangeSize(newsize, true);
 2286 			else
 2287 				c->ChangeSize(newsize, true);
 2288 	}
 2289 }

atof() should be converting it from a string to a float, so it looks like the problem is farther down the chain. Unfortunately, I have no idea where ChangeSize() is defined.