The stock tail wheel arrangement will work. What usually happens
is the supplied wire will break. I went through this with my Sig Midstar.

The stock tail wheel wire eventually broke and I replaced it
with a Sullivan unit. On my next plane (Sig Somethin Extra)
I went straight to the Sullivan.

If you have a nice smooth field and always make nice
smooth landings the stock arrangement will be fine.
But if you have a rough grass field go with a Sullivan.

Mike Hammer