My old Bonanza doesn't have the adjustable shell holder for priming, and the new Forester's have a smaller jar on the spent primer tube. Both are minor changes to the old Bonanza's but good changes in my opinion. I have been using mine since 1982. Have never replaced a part, keep em clean and lubed and they'll last a lifetime.I've been using a Forester for a few years now and have really enjoyed it, the floating die, easy change of dies, no need to mess with shell holders going from ppc to 308 style to magnums, the primer catcher and I set the primer part up for my 338L based cartridges, works better for them than any shellholder in a Lee or Sinclair priming tool.
One question though, what is the big differences in the Forester and the old Bonanza models, I have an opportunity to pick one up for a good price and wondering if the old ones are worth messing with.