Thanks to all for the comments. I know that the Corona has always piched up to some degree, but it seems to have increased substantially of late. I think I'll try the CF flybar. I like trying new things. If anyone would like to experiment with Choppa's cyclic conversion I have all the bits and pieces. I'm one who tried hard but failed to make it work as advertised. I gave up and restored the Corona to stock. Now I having fun once again.