Just recieved my new Luke guitar which is awesome. Last night tried it out at a gig and found that the nines (strings) that came with the guitar feel funny since I am used to 10s on my strat. Is there an issue going to 10s on the LUKE and will I have to have my new LUKE setup to use 10s. Also, the case I recieved with the guitar is very disappointing. The guitar flops around in the case.