Oooh, one of my favourite subjects. My first tent - I got a highlander forces tent, heavy but roomy and really well designed. Ultra stable. Swapped out the fibre glass poles for alu and changed the heavy guys and pegs for lightweight, and got it from 3.5kg to 2.2 kg. Next one, a second hand TNF tadpole. It's a great tent, but blue/ After much research, figured I could dye it. Tried it and it worked a treat - 1.9kg, and green not blue. next one, a hike lite. Great tent, but not made any more. Got one cheap off ebay. Took off the heavy buckles and webbing, swapped the pegs for ultralites. Got it down from 2 kg to 1.7. None of them ultralite, I know, but on a limited budget, it's okay, and all three are ultra good designs. Now I just have problem choosing which one to take.