The Piccolo SE is a great contemporary razor that gives you the option of OC and SB bases and won't break the bank.
Definitely +1.
I'd like to add that if you've got blades from 5 years ago you've covered both extremes of the spectrum - exceedingly sharp (Feather) and what many people would consider exceedingly dull (old Derby).
Given your sensitive skin and tough beard you may be better served with a blade sampler. Maybe Gillette Yellow, Personna Med Prep/Lab, PolSilver SI, etc.
I ordered the Razorock Game Changer on Tuesday night, it turned up today. That's pretty good, where i live. The seller was vshod.com. They sent me a range of blades, which was a nice bonus. The razor looks and feels robust and precise, I can't fault the machining or polishing. I'll update when I've given it a go. The tips on blade selection are appreciated.