Malcolm , there are several things that are done differently at Lake Gairdner ,compaired to Bonneville ,and I put them down to a basic lack of volunteers / manpower and not enough equipment the 4 main points are
1. only one course which is used for both short and long runs ( we only have one set of timing equipment)
2.no controll "gasolene " ( no fuel company specialist or otherwise which shows interest in assisting )
3.We do not measure displacement ( a manpower problem ,its hard enough to get the help for the basics
4. We have two types of records A. a single run with the highest speed accepted out the back door short or long course , this type is the most common by a long shot or a two way run as per bonneville
we are currently reviewing the "gasolene " proceedure now and looking for ways to have a "standard " petrol available , also we are looking at a test track to run in a similar direction to your short course , this could be if demand in the future warrented be turned into a record short course ,also if and when our dedicated voluteer base increases, we would look at impounds and engine measurement proceedures
Gary