New to slot cars and tracks

Pulled the trigger today. Going to extend the AFX HO Infinity track by 30" into an oval for starters. Plan to expand from there and create a scale layout with greenery, buildings and such.
Been flying 700 sized rc helis for 20 years with a few rc planes and an rc car or 2 mixed in. This perfect for an rc guy during bad weather days. I'm not much for video games. I like something a bit more tangible that has no reset button...
Going to start on a 3x6 table then go from there. I'd prefer high speed on this project and figured oval would do it if the straights are long enough. Then perhaps integrate a road course portion with quick change from oval to road course. It's interesting.
Tips and advice is welcome.
Been flying 700 sized rc helis for 20 years with a few rc planes and an rc car or 2 mixed in. This perfect for an rc guy during bad weather days. I'm not much for video games. I like something a bit more tangible that has no reset button...
Going to start on a 3x6 table then go from there. I'd prefer high speed on this project and figured oval would do it if the straights are long enough. Then perhaps integrate a road course portion with quick change from oval to road course. It's interesting.
Tips and advice is welcome.