If you want more speed, use a Ferricyanide / bromide rehal bleach. There are many formulas here and there on APUG and the internet. Use the same exact process, but use the ferri rehal bleach instead of Copper Chloride. This change will give you AgBr which is sensitive to visible light and will give more speed.

If you wish, after you finish the entire rehal process, you can bathe the film in a 10% solution of Erythrosine and then wash until the water changes from red to clear. Now, if you are lucky, you have an orthchromatic film to use and it will have either less or more speed. It will be less if too much dye is used and more if you used just the right amount.

PE