After using Tri-X and the Arista variant for some years, I decided to try HP-5+. Did my first roll yesterday, using D-76h 1:1 and Massive Development chart times. When I wet printed, I noticed two major changes - less contrast than Tri-X and more grain - a lot more grain. Agitation is the same - constant for the first minute (inversion) followed by four inversions every minute. Is this just the nature of the film, or is it developer-specific? Any help appreciated. Thanks.