Hi,  a couple of weeks ago I voted for 4 delegates.  1 delegate (seatrips) send me some shift back I assume as a reward for voting for them, thank you, but that was a couple weeks ago.  The other 3 have not sent given me anything.  Is this in the normal course of events? Do you think I voted for some bad delegates and been short-changed (except it seems seatrip)? Should I expect more rewards from them ?

I depends on your voting weight and not all delegates run as pools. The following delegates are pools (sharing percentage varies);
seatrips, gregorst, shiftraider, shiftspider, bawga, shiftpool, jamiec79, official_pool, djandre (from saluki on the Ryver chat)

Most pools have websites that you can check your stats such as;
https://pool.gregorst.org/
https://pool.seatrips.nl/

The forging reward for Shift is fairly low (1 Shift per block) so depending on your weight it might take a bit to reach a payout threshold. Usually it's .1 around 1 from what I've seen.