I don't play SnG's, but I thought the new HUD's kept stats for full table, near the bubble, and ITM. That way, the reads from early on when folks are tighter don't cause confusion later. Maybe it's a setting you have to tweak in HEM?

Anyway, HUD's have too much vital information to play without them, imo. If PT3 or HEM isn't the right aid, pick up SnG Wizard or some other tool. I think you'll advance further faster with it than without. When you've played a guy in 3 or 4 SnG's and have solid HUD reads on his play (plus notes!), you can play a lot more confidently and avoid trouble easier.