Thanks for the help Al, and sorry to raymo for hijacking
I was doing something really stupid... I wasn't sliding the bars along

I was trying to increment it using the up and down arrows
With a bit of fiddling... wavelet 1 at around 60(!), wavelet 2 at around 40(!), here's what I settled on... I think this was just after Io had transit, which can be seen just off to the right. It's a bit small but I'm pretty stoked with that so far
Oh this is with my C8 and 2.5x Powermate and QHY5L-II.