Rehauling my play. An early game workshop.

[Unoriginalname]

I've been trying to open up my early game lately. After about 2500 SNGs at the 22s, I've got about a 15% ROI. I'm really trying to make the 20% club and feel like I'm losing some potential money in my early and mid game decisions. I'm really unsure of myself in many of these situations, especially with decisions when I have about 10-15xBBs.

Here's a few hands I'd like some input on. Some of these hands might seem like ridiculously easy decisions, but like I said, I've just been unsure of myself a little lately:

1. What's my line preflop?
PartyPoker, Big Blind is t100 (7 handed) Converter on pregopoker.com

UTG (t590)
UTG+1 (t1355)
MP1 (t605)
Hero (t1522)
Button (t785)
SB (t1253)
BB (t1890)

Preflop: Hero is in CO with J[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img]
<font color="gray">UTG folds</font>, UTG+1 calls t100, <font color="gray">MP1 folds</font>, <font color="gray">Hero ...?</font>

2. Does my preflop raise suck? Should I have just went all-in? I planned to call any all-in raise. The first caller in this hand was calling probably about 30% of flops; hands like QJs, KTo, etc. The second caller was calling tons of flops, probably more like 40-45% VI$IP. I put him on capable of calling hands as low as A2o, K9s, 78s etc.
PartyPoker, Big Blind is t50 (8 handed) Converter on pregopoker.com

UTG (t1553)
UTG+1 (t1815)
MP1 (t838)
MP2 (t540)
CO (t1130)
Button (t680)
Hero (t659)
BB (t785)

Preflop: Hero is in SB with A[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/heart.gif[/img]
UTG calls t50, <font color="gray">UTG+1 folds</font>, MP1 calls t50, <font color="gray">MP2 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, <font color="red">Hero raises t225</font>

3. Was this out of position call a bad play? What about flop play? My read on the player: This player pissed away about 200 chips early in the tournament. He called pre-flop raises twice, called flop bets, then ended up folding the turn.
PartyPoker, Big Blind is t15 (9 handed) Converter on pregopoker.com

UTG (t650)
UTG+1 (t968)
MP1 (t590)
MP2 (t775)
MP3 (t1877)
CO (t490)
Button (t675)
Hero (t1235)
BB (t740)

Preflop: Hero is in SB with Q[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="red">MP1 raises t50</font>, <font color="gray">MP2 folds</font>, <font color="gray">MP3 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, Hero calls t40, <font color="gray">BB folds</font>

Flop: (t115) 6[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] (2 players)
Hero checks, <font color="red">MP1 bets t75</font>, <font color="gray">Hero folds</font>