So I was planning to make my biggest AG beer to date this weekend....a Russian Imperial Stout at 1.094 OG. I figured this would be a good opportunity to try my first yeast starter as well. I generally use Wyeast Activator packs so I figured I would buy 2 London Ale III 1348 for this brew and do a starter. So I put the starter together last evening using 4.5oz of Light DME and boiled in 1300ml of water for 15 min. I cooled this down to 70 and added my 2 packets of yeast. I used the Mr. Malty pitching calculator to calculate the numbers. I noticed that packs hardly swelled at all and they had been sitting out for 5 hours so this was a little concerning as usually they are fully swelled in that time frame in past cases. So here I am about 14 hours after pitching and there is zero activity. I have read of giving it about 18-24 hours before pitching. I assumed it would start fermenting quicker due to the small quantity of wort but maybe I'm wrong. I have been shaking/swirling every so often and I did shake it very well before adding the yeast. I can delay the brew until tomorrow but I'm concerned at this point. The yeast date was June 23rd. Any thoughts??