Go for it. If you first brews turned out well, PM is a solid next step.
IMO, learning to ferm well (starter, oxygenating, temp control) is the key to good brewing. With a huge beer, you'll need to master these techniques. A big starter and O2 stone injection is a virtual must. Keeping temp at the end of ferm to the high end of the yeast temp range will get you to achieve FG.
If you can make a great big beer, you can do almost anything.
Give a man a beer, waste an hour. Teach a man to brew, and waste a lifetime! Bill Owen quote
Join the Beacon Point (Aurora, CO) Brewclub on Facebook- casual, fun brewing, drinking, socializing!