I only spotted this one whan I saw the subject loosing snipes and visualised snipes becoming like a plague of locusts!
Then I realised it was a typo for losing.
I cannot see what difference there is, as far as ebay is concerned, whether the bid is placed 'manually' or by sniping -ebay does not know which.
I use both AS and manual bids - some I win, some I lose - that is the nature of the beast; no need to waste adrenalin on it at all.