My information is a little dated but I thought LogTen Pro was a horrible program. I switched from LogBook Pro to LogTen when I went Mac in 2006. LogBook pro had built in filters but LogTen requires you to build your own. I tried for two weeks to figure out how to get the damn thing to tell me how much of anything that I had. Having to write code is not my idea of a user friendly program. I never figured out how to get "if multiengine=>0.1 show" to work. It was a completely useless program and I actually went back and installed LogBook Pro on my wife's PC (she's Mac now) in order to filter my times for the NetJets application.
As I said, my info is a little dated as I refused to pay the $60 "upgrade" fee for the new version a few years back. I thought my original $80 was a complete loss and wasn't going to gamble anymore money. Maybe things are better now, but if not, I'd stay the hell away from LogTen Pro unless you're more then a casual user.