I think the T30 is a great tyre for the ST1100, if I had an St1300 there are so many more options,but the PR4 GT or T30 GT would be top of my list for a 1300.
Stay away from Avon tires, do a search here and you will find lots of problems with them on any ST.My "go to guy" also recommended I stay with factory spec tire sizes. That said I want to go with a radial tire. So far Dunlap road smart, Avon storm 2's, are getting good reviews although if memory serves me Avon's are pricey? It's winter here in Michigan ...I have time. What I will say is I bought a New Lazer carbon fiber helmet from Revzilla on sale for $299.00 down from 500.00 and it is Awesome. Super light weight, modular and looks good too.
How do I post a picture of my bike here?....Thanks for all your help and comments