I have just started playing with some of this film. I have rated it at 32asa and developed it in Ilford Ilfotec LC29. The Konica documentation suggests 1/60th sec @ f5.6 in bright sunshine with a Red (25A) Filter. I found those values to be pretty good, adjusting maybe by 1 stop at times. Interestingly, my meter suggested this value anyway for the 32asa setting. In my endevours to find a development time I came across a site with suggested times for all sorts of film/developer combinations including Konica IR 750nm. They didn't have a time for my developer. For ID-11 they quoted 6 minutes but didn't quote what asa rating that was for. the site is at THE MASSIVE B/W FILM & DEV CHART(posted 9155 days ago)My 1st roll suffered from recircilation as I think the wash stage changed temperature although a roll of FP4 I developed at the same time came out fine. I suggest you watch your temperatures closely. My second roll was fine, and I liked it so much I went and bought another 4 rolls :) Good luck with your trials