The high cost of broadheads drove me to the NAP HellRazors (The G5 Montec is every bit as good) because they are a super tough one piece design that can be easily resharpened. I bought 6 two years ago and I still have 5. I lost one shooting at a rabbit in deep snow.
1-1/8" cutting diameter is as much as you will ever need. Heck, 7/8" Muzzys have done the job on thousands, if not millions of animals over the years.