My only problem right now is that I prefer a nylon strap to the provided rubber strap (I think I might have a mild allergy?), but all the nylon straps I've foun

My only problem right now is that I prefer a nylon strap to the provided rubber strap (I think I might have a mild allergy?), but all the nylon straps I've found end up covering the heartrate sensor. I've tried cutting a window out of the straps, but it doesn't work, and the way I cut the window (soldering iron) left rough, irritating edges. I have an idea for v2 of modifying the straps (and luckily nylon straps are extremely cheap, plus v2 cuts out all of the effected area of v1), but I might go for a chainlink strap instead.