That is the concern I have. Although I have no doubt that when pushed these cars understeer as was common in the day and I believe reported in contemporary road tests. The rear bar should help that but I am concerned that a 1″ bar might be too much and make it rear end happy. Good point that it may be bigger but the mounting and character of the 1″ bar doesn’t necessary mean it will be stiffer/better than the front. At this point this is the only bar I’ve found so I’ll give it a try and report my results.
Looks like Ken may be on the road before me so he might have some results to report sooner.