hey all -

ive worked out generating prism out of progressive lenses. it's down to a science now. only thing im trying to find a solution to is generating prism out of bifocals. the inset was 2.50 and the down was 3.50. the right lens came out excellent. right in the OC. as for the left. it was about a millimeter above the seg. i tried everything that i could think of to correct it but i had to take a breakage. i was wondering if anyone has any techniques for bifocals with prism or a whole other solution. i use a cs-7 to layout everything. a 108ct coburn generator. ive elimated issues that may bite me on the hiney so far. tightened up the generator and did the wiggle test so i know the machine isnt shifting when im generating. other than that, im open to all comments and suggestions for future incidents.
thanks.

right lens was at 1 diopter and left was a half diopter further in. VI and HI were beautiful.