Extremely cold natured so, hate to say but all I have is the USGI ECWCS 3 system. I also have a fleece jacket made by Helikon-tex, it's pretty warm. Yeah, anything below 70 I'm freezing.
When I worked part time for the doo doo plant we couldn't get rid of the crap (duckweed) lol. That stuff would take over our ponds and screw up the oxygen level.
I might can help you out. Our cities sewer plant ponds are covered in that crap! Pm me and I will contact the supervisor and I'm sure he would be glad to give you all you want.
Just got my Emerson CQC 7 today, it's half serrated and I like it. I like half serrated knives. Never had a problem with them getting dull. I actually cut a piece of 4" roll plastic pipe into once and won $100 from my boss. Used a jack and a couple of chunky co workers but it worked took a lil...
Chest rigs are great until you have to crawl a couple hundred yards in the mud....then they end up being bulldozer blades attached to your gut.
That is a very true story lol.