I took the rigging off when I first got it and tried to raise it from the back. The angle and height of the pop top makes it nearly impossible. You almost have to have the mast straight up before you can get it to line up with the pin hole on the mast step.
Paul, it may be that these boats have different setups, actually I know they do as far as hardware and clearances around this specific area. I have a 79 with a pop top and I assure you I raise my mast from the AFT position. I have built an AFT crutch that is used to support the mast during transit, as I mentioned. This crutch consists of 2 rollers on a "V" at the top of the crutch and an inner square pipe that raises & gets pinned which makes it another approx 4' higher (8' total). The mast is unhooked from the forward holder & rolled back on this raised crutch until the large mast foot pin can be engaged. Then from this semi raised position it's just a matter of winching the forestay with the setup I have up front.