Sorry, but the bite component in the Track Tac® SST5-Purple like tire cord more than rubber. It gets to the cord and stops. This is what make Track Tac® SST5-Purple a great outside conditioner but a bad inside treatment.
Inside you can use Track Tac® Tire Tuff Original or a 50/50 mix of Track Tac® GK1-Blue and Track Tac® Tire Tuff Original.
No softening from the straight Track Tac® Tire Tuff Original.
Mild softening if you use the above mix.
It is a waste to use more than 1 to 1.5 oz on the right side (30cc to 45cc)
Once for the life of the tire carcass.
Half or less on the left side tires.
Hope this helps,
Randy
Thank you for your answer and insight on that. Does the SST5 drop the duro any when used as a conditioner weekly? I have only used it a couple of times trackside for bite, never as a conditioner thru the week, but would like to try that.