Some claim the injections work faster and some don't. The one benefit to using the gel is that you'll get a consistent daily dose (no real 'dips' like you sometimes experience with shot cycles).
There are some things you need to take into consideration, however.
- If you don't already do so, you'll need to shower every single day as the gel is to be applied immediately afterwards.
- You'll need to be consistent with the dosing times.
- Try to avoid doing heavy work or exercising for a couple of hours after your dose as it could potentially cause issues with the absorption of the T.
- Apply the gel to your shoulders and upper arms to minimize the risk of transference (these areas can be easily covered with a short sleeve shirt).
- Be aware that if someone happens to come into physical contact with the areas, they'll need to immediately wash their hands or other locations of contact with soap and water.
- Even after the gel has dried to the skin and been absorbed, it's recommended that you wash the area with soap and water or keep yourself covered with clothing if you know someone else will be coming into physical contact with those areas (as in the case of a spouse or partner).
As far as injections are concerned, I find them to be a -lot- easier and less finicky.
I understand your fear of injecting yourself but I can assure you that it goes away after the first couple of times you do it. The best advice I can give you is that, should you decide to pursue the shot route, you should make a physical list of steps to pack away with your shot kit so that you'll always have a visual aid of what to do.
Air bubbles were a concern to me in the beginning as well but they've turned out to be quite a non-issue. If I see any in the syringe, I simply pull the plunger down, flick it a couple of times, and they dissipate. After that, you just put the injecting needle on (switching the drawing one out) and very slowly push the plunger until you see the slightest bit of oil touch the tip of the needle. Then it's just a matter of pushing it into the injection site, aspirating, and then injecting it. I inject predominantly in my thighs and, as long as you stick to your outer thighs, there's really no worry of hitting any major veins. You may possibly nick a small vein every now and again in your way in (which will cause a bit of blood to squirt out) but it's uncommon and not a cause for concern.
Anyway, you really just have to weigh the pros and cons to both methods. I personally am very forgetful, not schedule-oriented in the slightest, and very physical with my fiancée so the gel was a no-go for me right off the bat. Spending approximately 3 minutes a week on a shot, however, is 100% doable.
One thing to note is that you can always change methods if you want to down the line as long as you discuss it with your doctor. Plenty of guys opt for the shots the first couple of years and then switch to topical options (or vise-versa) down the line.