I think you should stay 1.6 because You will experience more incompatibilities... this is my advice
	if you are not sure with site backups  try elsewhere as a test  
 
I think you should stay 1.6 because You will experience more incompatibilities... this is my advice
	if you are not sure with site backups  try elsewhere as a test  
 
I think you should stay 1.6 because You will experience more incompatibilities... this is my advice
	if you are not sure with site backups  try elsewhere as a test  
 
I think you should stay 1.6 because You will experience more incompatibilities... this is my advice