Well, this is my second day doing the lower-carb thing. My blood sugars are still frustratingly inconsistent but at least the swings aren’t quite so huge. Today I had 135g of carbs (and resisted a HUGE craving for sushi!) if I include the Skittles I ate. One great thing is that yesterday and today I only took about 42 units total, compared to around 55-65 before. Today about 10 units of that was used in corrections which is way too much, but hopefully something will start making sense sometime soon …
(yesterday)
12:27 - 7.2 (130) - Before bed, no action
(today)
7:28 - 12.4 (223) - Morning, correction
10:35 - 5.3 (95)
11:18 - 3.2 (58) - Skittles (10g carbs), breakfast (35g carbs)
1:53 - 11.3 (203) - Correction
2:44 - 9.4 (169) - Lunch (31g carbs)
4:38 - 6.1 (110)
6:31 - 3.8 (68) - Dinner (40g carbs)
8:04 - 10.4 (187) - 45 minutes on bike (reduced bolus 50% for exercise)
9:04 - 9.7 (175) - Correction
10:29 - 12.8 (230) - Snack (15g), correction
12:50 - 13.9 (250) - Correction
Well, 135g of carbs is still kind of a lot – I’m not going as low as Bernstein, but I’m trying to keep my carbs to 50 - 60g a day. Which has helped with swings, both high and low. Every once in a while I cheat, and pay the consequences. But when I’m good, I do reasonably well at staying under 140 (not always, of course, but frequently). Whereas when I was eating more carbs, I was almost never below 200 after meals (and when I was bingeing on carbs, I went over 600, but let’s not talk about that!). Keep on experimenting and see what works for you! 
I would like to get to under 100 eventually but, considering I’m starting from eating about 275-325 a day, this is a really good start! I’m trying to stick to 30-40 per meal and 10-15 for snacks. I need to get some ideas for foods I can take with me when out and about and also snacks around the house, as all I have right now are things like granola bars and yogurt and fruit which won’t work if I want to stick with this …
Personally I think you are on the right track. I have been on the pen since around last Thanksgiving. I have found that the fewer carbs I have the more stable I am. If my premeal reading is under 100 I stay with a no carb meal and treat myself to some fruit or something else I can really enjoy. If my reading is somewhat high I will eat minimal carbs and try for some that work well for me (like berries or whole wheat toast). I also have found a couple protein bars that work very well and taste really good. One is by “Think Thin Products” and comes in a variety of flavors (chocolate fudge is great). Trader Joe’s has these as do a lot of other stores. 20g protein about 27 carbs. You’ll have to see how they affect your readings, but they do ok by me. The other is only available in one flavor (choc. peanut butter) and is the best tasting bar I have ever tasted, ever. Belgian chocolate, 10g protein a few carbs. This one has yet to raise my readings even if I eat them as a snack and check my bg within the hour. A fantastic bed time snack. It is called “Diabeteze” and I have only found it at Costco and online at the mfg website (same name as the bar). I am a long way from having this figured out but for the most part my bg is staying below 140 (not always) and it is becoming common to have readings around 100 give or take at 2-3 hours after my meal. My a1c in October of 2010 (when I was dx’d) was 12. Four weeks ago it was 5.5. I know everyone is different and I am absolutely a work in progress, but at this time trying to stay below 100 carbs per day is easier to manage and getting better results.