Use Central Fibers 70/30 or make your own by purchasing a good wood like Matt Fiber or Central Fiber and blend it with a paper. A 50/50, 60/40, or 70/30 will work extremely well for your machine so stick to that and you will not ever have any problems with mulch again.
You can use a lot more Jet Spray than blend without getting into trouble. I think your machine would play with that much jet spray and might handle that much paper but with a blend it might be a tad heavy even if you drop the hydrostraw.
thanks for the help guy's
like i said i will never buy hydrostraw again!!
the supplier i went to told me he had a 70/30 when i got there it was a 70/30 wood cellulose blend by conweb? i was told to stay away from that much wood in the past?

so i stuck with there 100% paper that they had!
will def look for this 70/30 central fibers and cut my mulch back a little!
on a side note we loved the jet spray barely had problems with it, mixed really well sprayed well and only had a few pump "lock ups" a year!!
but i called every # that profile gave me and they each said we will not carry this mulch for one "small buyer"! i have found a company 4.5 hours away!!!