EXPERIMENT # 8 
OMG! HOLY COW! AWESOME! BEYOND BELIEF! taking all of your advice, trying to follow all your suggestions despite my fears and trepidations, something wonderful happened: i swam for 2 hours, non-stop (except to test) hard and strong with complete comfort, and thought that if i hadnât been off of my basal for 5 hours, i would have swam longer !!! i am incredulous. 
here are the stats:
11:45 turned off pump 0% basal and gave myself .2 units of insulin my bg was 107, 12:45 my BG was only 117, then at 1:30 my BG was 118. at 1:45 my BG was 126 so i had a very small bite of a Baby Ruth bar and walked briskly to the pool ( 15 minutes). i detached my pump at 2:10 and my BG was 137. ok, i was climbing enough to feel safe to swim.
so here goes (i jump into the pool at 2:15) BG 137
swam for 1/2 hour then tested at 2:45 BG 147 (feeling safe and comfortable; no signs of crashing)
@ 3:15 BG 148
@ 3:45 BG 143
@ 4:15 BG 164
i thought that the rise in bg might be due to the stronger swim???
@ 4:20 i manually bloused 2.4 units to 1) replace some of the basal that i had missed all day, and 2) to keep from spiking post-swim.
how i came up with this amount of insulin is beyond me. i had already been without basal for 5 hours; how much insulin could i need? i didnt have a clue. my BGs were high when i got out of the pool, so i was hoping to short-stop the rise. this is still something that eludes me completely, but hopefully my guess will pay off.
got into the shower, dried off, reattached my pump@ 120% basal, and then briskly walked home (another 15 minutes) and here i am,
shoveling turkey down my throat 
it is now 5:30pm and i just tested; my BG was 180 ( my sugars went UP not DOWN) i think that this is most likely due to not having any basal on board for so many hours, but i am not certain. and even though i am high, i think that this experiment was a success.
all i need to do is take most of what i learned today, and modify it a bit so that tomorrowâs swim will be even better. i think i need to find a way to be off my basal for such a long period of time, and still keep my BGs in target range. perhaps i needed to be more aggressive with my post-swim bolus.
please let me know what you think and how you think i can improve upon this miraculous event.
thank you thank you thank you !!!
DM the fish