No problem.
Actually the idea is to gain enough experience in the water so you're not pulling abs that you don't want. Abalone are remarkably sensitive, like me

and will die if you look at them wrong, so getting this down helps the both of you.
If you want to try the chumming thing, save the trimmings from your next load of abs and freeze them in a baggie and bring 'em out the next time- I pretty much promise that at least the blues and black rockfish will come and say hi and it's fun as well.
And on the less than 20' thing- every, as in EVERY really good diver I know would rather spend all day in 20' than busting their ass in 70'. And truth be told, the biggest abs I've pulled and this goes for those other really good divers too, have been in less than 20'. Working shallow is productive, save and fun. Seems that there is a mindset that makes the wannabe's go waaaay out and deep thinking that nobody has been there. I have.
