All, thank you for all the great information. Sorry I didn't take pics but I am short on time to go back to this. I believe I will benefit from a medium or long cage but at this time I haven't found an equivalent Ultegra derailleur to replace it with. So for the time being I will set it up as big big length and run the existing derailleur. Just won't use the small to small gearing. Pretty much how it has been. Good thing is the whole bike is cleaner than it's been in a couple of years and the weather is changing to spring. Time to get off the rollers and onto the road. _As a side note. My wife has the exact same bike but smaller. Hers does not have the same chain issue so I think the smaller stay comes into play as her chain was shorter and an equal length for the replacement worked fine.

Thanks again for all the good information. Enjoy your coming season.

Steve