[playersare]

at those limits, you'll probably get about 1c of bonus from UB per raked hand. on absolute, you need a 10BB pot ($5) in order to earn 10c of bonus, so it's a matter of whether or not you will reach that threshold at least once every 10 dealt hands. neither is really that great a situation to begin with and you should seriously consider moving up to 50c/$1 limits which is really not much harder than 25c/50c.

if you are considering Absolute 25c/50c, then you might as well do the Paradise bonus instead, since the tables are looser there and the software is better (though still not perfect).

also, you can do the good Boss/IPN skins which pay 20c per contributed raked hand at any limit.