First regen was at 21 as previously posted about. Now I just had my second at 33 hours? I must be doing something wrong. I have even kept it at higher RPMs. More than I used to.
Check to be sure tractor air filter is properly seated and housing latched. When I had two rapid regenerations in succession too much air was the cause.
If your idling around, keep the RPM's above 1800 at all times..
The regen takes place when particulates are found in the "muffler"..
either change the place where u get your fuel or run the crap out of it.. HI rpms..above 1800
Don't know the LS brand, but my F3990 mower is run 98% of the time at full throttle and I've already had my 3rd regen with about 40 hours. The first did it with less then 3 hours. Might just be the nature of the new models.