Ok guys Its been a very long time sents iv done any train model stuff my grandson wants me to help him on an HO train [ he wants to build one] Over the years things have changed sents i buildt mine [45 years] what i need to know is the track to start out with first what is a good track I seen something about code 100 track is this a good track to go with. dont want to put a bunch of track down and it no be any good .I still remember a lot of stuff but like i say things change and new things come out so can anybody piont me to some good track to lay. ya starting all over again