Thanks for the info. I actually wanted to know since earlier you didn’t update the main batch 2 page for 6635E. Therefore I thought you meant 6655Y. Is it better leaving it as spare for 6635E now? It is hard to find the perms on 5,16 and 57 these days after the spad buses were out. Just like you, Im paying attention to the changes to 16 instead. Thanks again.