RE: would the u can do 46 be a good second plane
The Goldberg Tiger is really good for a second plane, great flyer and lots of built in ability to proceed forward without having a handful of problems. It's wing and design allow for slow landings yet you can accomplish a great deal with this plane. It also can be converted to tail-dragger with minimal effort.
I have a UCD 46 with a 91 FS, This plane can be real docile or..... It also is quite fragile and everyone I have seen has had the landing gear knocked off at least once. The inverted engine will also give a new flyer problems (as well as old ones).
I know your feelings but suggest you go thru the steps and become a better disciplined flyer.
My thoughts........