Thread Revival!

I've self deved a roll of hp5+ and not liking the grain structure, it's just so coarse! . The XP2 400 is just so much nicer as well. Is is because of my developing methods? I'm using Ilford LC29 1+9 @ 6:30min/20degs. and Ilford fixer 1+4 @ 5min.

Anything i should be aware of?