If you are intent of carrying a gun for personal defense don’t mess around. Don’t skimp out on your carry gun or gear. Don’t rationalize buying a lighter or cheaper or smaller gun you can’t shoot well just because you don’t think you can conceal the bigger, heavy, more expensive gun that you can make hits with. Don’t choose a personal defense gun on stats alone any more than you would purchase one because I told you gun "x, y, or z" will absolutely work the best for you. Carry the largest gun you can shoot well and conceal effectively. Don’t automatically assume you can’t conceal this gun or that gun just because it looks too big or feels too heavy. Most people would be surprised with how large of a gun they can actually carry and conceal comfortably if they just tried. Too many people spend $600+ on the newest compact rock em’ sock em’ tactical-super-blaster only to put the gun in a $20 holster hanging off a $10 department store belt. This doesn’t work too well for too long and soon the gun, no matter what its size or weight, becomes a burden to carry. So eventually the operator chooses to leave the gun in a nightstand drawer because of his own poor choices in gear instead of carrying it like he should have. Large guns, depending on the person, can easily conceal well. It has been my experience that the overall thickness of the gun has allot more to do with ease of concealability that the length of the barrel or grip.
Pompey - If your P89 works for you and you can shoot it well by all means carry it. If the P89 doesn’t work for you spend the time and the money at the range and rent some guns to find out what works best for you. Once you find that out buy the best gun you can afford and good carry rig from a reputable maker such as Milt Sparks, Alessi Leather, Kramer, Delfatti, Bulman, G. Wm. Davis, etc. After all of that the most important thing to do is practice. Don’t shoot your gun once or twice or even only every six months and assume you’ll now how to use it in a lethal confrontation because you won‘t. Shooting skills, like most things, have to be maintained with routine practice. So once you’ve decided what gun you shall carry shoot it often and shoot it allot. Not only will frequent practice help hone your skills it will also give you a good idea about what works in terms of gun leather and accessories but most importantly practice keeps you sharp. Too many people buy a gun shoot it once and rest on their ever-spreading laurels that they are now "safe". This is no good and when the chips are down and you have to shoot because your life depends on it you’ll wish you had a bigger and better gun. You’ll wish that you had practiced more and that when you had drawn your gun that ever so economical $10 nylon holster wasn’t hanging off your muzzle, ‘cause it wasn‘t securely attached to begin with. Think, plan, train, and do it right the first time.