P75 - I’d start with increments of about 1.0mcg. I think it is too easy to od with this one. Here’s my thread on P75
P89 with P81 - 15mcg each
P92 - experiment with increments of 25mcg
P74 - increments of 5mcg
P97 - increments of between ten and twenty mcg
P79 with P80 - Start with about 7.5mcg each. Here’s my favorite P79/P80 post.
P123 - I think most people have been testing with with way too much. I’d begin with increments of 1.25mcg.
P77 - Not much known about this one. Start with maybe 25mcg? Here’s my experience with P77.