whell hello, my name is JWOC, i have played KSP since June of 2014 as have you. i hope that being a member of this forum will help you better understand the game and allow you to ask for help Happy Launchings, JWOC
Inigmia, i woulld ugrade the shuttle to use the new landing gear and fuel cells to make it loook more like the actual shuttle. the new medium landing gear can handle a 70 m/s landing. and the fuel cells generate electricity, so you can remove the RTG units. this would help with part count. the new landing gear would allow for pepole to land it eithout much of an issue since you can land up to 70 m/s with the medium landing gear. i think thease changes will make it eaven easier to flly. i have test flown STS-4. and it flies amasingly well. it glides very easily. it is one of the best space shuttles i have seen on the KSP foroums. i willl test STS-5 and STS-5E on friday. -JWOC