download plugin - what is correct url to get file?

[Jimmi08]

I noticed this:

URL for download:

sc_download_list_link():

$this->var['download_mirror_type'] ?
					e_PLUGIN_ABS . "download/download.php?mirror." . $this->var['download_id'] :
					$tp->parseTemplate("{DOWNLOAD_REQUEST_URL}", true, $this)

sc_download_view_name_linked()

see? no mirror test

$url = $tp->parseTemplate("{DOWNLOAD_REQUEST_URL}", true, $this);

sc_download_view_link()

see? with href parameter no mirror test, different mirror test than above

		$url = $tp->parseTemplate("{DOWNLOAD_REQUEST_URL}", true, $this); //$this->sc_download_request_url();

		if (varset($parm['type']) == 'href')
		{
			return $url;
		}

		if ($this->var['download_mirror'] && $this->var['download_mirror_type'])
		{
			$url = e_PLUGIN_ABS . "download/download.php?mirror." . $this->var['download_id'];
			$img = defined('LAN_dl_66') ? LAN_dl_66 : "Select download mirror";
		}

sc_download_list_name()

if ($this->var['download_mirror_type'])
			{
				$href = e_PLUGIN_ABS . "download/download.php?mirror." . $this->var['download_id'];
			}
			else
			{
				$href = e_PLUGIN_ABS . "download/request.php?" . $this->var['download_id'];
			}

And

	function sc_download_request_url($parm = null)
	{
		return e107::url('download', 'get', $this->var); // /request/item',array('id'=>$this->var['download_id'], 'name'=>$this->var['download_sef']));

	}

 		$config['get']     = array(
			'regex'		    => '^{alias}/get/([\d]*)/(.*)$',
			'sef'           => '{alias}/get/{download_id}/{download_sef}',
			'redirect'	    => '{e_PLUGIN}download/request.php?id=$1', 		// file-path of what to load when the regex returns true.
		);

Why is parseTemplate() used to get URL?
How using mirrors should be managed?
What is correct download link?

Thanks