Interesting, I don't know if this should be the case but found the tiny_mce code in the header slowed down my site when using a full implementation. Putting the code normally put in the header, directly at top of storyeditor_advanced.thtml gave faster overall site performance while giving full editor access to admin.
Text Formatted Code
<!-- tinyMCE -->
<script language="javascript" type="text/javascript" src="../../tiny_mce/tiny_mce.js"></script>
<script language="javascript" type="text/javascript">
tinyMCE.init({
mode : "specific_textareas",
theme : "advanced",
plugins : "table,advhr,advimage,paste,contextmenu,ibrowser,imanager,fullscreen,advlink,emotions,insertdatetime,preview,flash,searchreplace,print",
theme_advanced_buttons1_add_before : "fontselect,fontsizeselect",
theme_advanced_buttons1_add : "",
theme_advanced_buttons2_add : "ibrowser,separator,insertdate,inserttime,preview,separator",
theme_advanced_buttons2_add_before: "cut,copy,paste,separator,search,replace,separator",
theme_advanced_buttons3_add_before : "fullscreen,imanager,tablecontrols,separator,pastetext,pasteword",
theme_advanced_buttons3_add : "emotions,flash,advhr,separator,print,forecolor,backcolor",
theme_advanced_toolbar_location : "top",
theme_advanced_toolbar_align : "left",
theme_advanced_path_location : "bottom",
plaintext_create_paragraphs : "false",
content_css : "example_full.css",
plugin_insertdate_dateFormat : "%d-%m-%y",
plugin_insertdate_timeFormat : "%H:%M:%S",
extended_valid_elements : "a[name|href|target|title|onclick],img[class|src|border=0|alt|title|hspace|vspace|width|height|align|onmouseover|onmouseout|name],hr[class|width|size|noshade],font[face|size|color|style],span[class|align|style]",
external_link_list_url : "example_link_list.js",
external_image_list_url : "example_image_list.js",
flash_external_list_url : "example_flash_list.js"
// file_browser_callback : "fileBrowserCallBack"
});
// function fileBrowserCallBack(field_name, url, type) {
// This is where you insert your custom filebrowser logic
// alert("Filebrowser callback: " + field_name + "," + url + "," + type);
// }
</script>
<!-- /tinyMCE -->
BTW - The Geeklog cvs has a very nice editor implementation using fckeditor - I haven't tested it for overall site speed on a shared hosting server but will be nice if the speed problems I found with tiny_mce are overcome