We are looking to buy an ergo for ds2 now that he is 4 months and 8.2kg. The hab doesn't really cut it anymore lol. Looking to get one that is lighter as it is summer so looking at the performance or sport. I like the grey performance but the sport is cheaper, decisions decisions! Has anyone used these two? The performance doesn't seem to have as padded straps so don't know if it wouldn't be as comfy? Any feedback on either would be greatly appreciated! Tia