Hand tight and check for leaks while running.
On removing filter with a strap wrench make sure the strap is at the base of the filter.
For removing a stuck filter I use a chisel (on the base ring of the filter) pionted in the direction of removal and tap with a hammer ( use a dull chisel) or it will just cut the filter to peices. Hope this helps and don't ask me how I know all of this lol.
