[b]Jim:

That comparison is pretty much apples and oranges. The GP42 is what I call a "Starter" engine, one to learn with. The TH 46 is what you "Graduate" to, much more power than the GP 42 as you noted. If there is a TH 40 that would be the one for comparing with the TH 46, just like the Magnum XLS 40 and the XLS 46 I mentioned.

Sound to me that you should go ahead and buy the Magnum XLS 40 - save money and have good power.

Bill.