MCA systems

Only time I ever come across minimum low-end and heavy was model 35. 25lbs just in chassis and cover, floppy tray (good 1lb itself without floppy drive itself), PSU. I've P75 and Model 70-Axx, three days ago, came across storage expansion box (based on stripped 95xx tower and refitted with 7 drive bays (2 or 3 of them is for 5.25" FH) no drives and still weighs like 30lbs. all of them except 70 and P75 (mostly plastic) are thick gauge steel and PSUs which are very HEAVY. But other items that made the P7x heavy were in display panel, PSU (IBM tried to lighten it unsucessfully by using tin sheets wrapped around plastic chassis to keep PSU in shape, fault is using copper heatsinks and heavy transformers. Completely stipped P7x shell weighs about 3 to 4lbs. With care IBM can make strong machines with less steel and less massive PSUs, besides they have knowledge already. They should talk to apple who designed quality plastic boxens in past. Cheers, Wizard