The Montecs are a great head however being tired of replacing blades is not a great reason for getting them. Instead of replacing blades, you will now be replacing the entire head if you ding a blade or bugger up the tip.
I shot them for 6 years and was extremely happy with their overall consistency and performance, however I have a box full of heads that are now exclusively practice heads. Some have the point knocked off, some have dinged blades, etc.... Terminal performance on animals is great but the heads will often get dinged beyond reuse by hitting rocks and such, after, the pass thru.