IIRC the 12-60 wasn't the best optically. I believe some were better than others. As Davros says check the thing for play in all the controls - it's an old scope and will have seen a lot of twiddling by now. Spares are made of unobtainium so if it breaks it's scrap. I've seen a number of much newer FT scopes give up the ghost. A good one will do the job perfectly but IMO most of these are well overpriced secondhand. I believe the price should reflect their age but it rarely does. They're often priced over £300 with a big wheel / butlers / sunshade / mounts but I'd be reluctant to part with anything much over £230 personally. Maybee I'm a tightwad though