Seriously -- try diluting your HC-110 a bit more to get longer process times, and if possible, reduce agitation. At a minimum, change to Dilution H (1+63) and convert 3 minutes to 6 (and then cut it back to 5 or a bit less).
If you process with intermittent agitation, you'll gain film speed by going to Dilution F (1+79) and processing for 10 minutes with agitation every third minute -- probably pick up half a stop to a full stop, as well as making it much easier to control the contrast.
You are, however, getting close...