I have a small jon boat with a trolling motor .

Are these 2 places worth trying?

Bass ? Pickerel ? 

flints has bass, pickeral, yellow perch and sunfish. pickeral are the domanant species. pond is full of millfoil so you will need to fish weedless.

horseshoe has been going down hill for a while. got skunked last few times i was there. natacook is slightly better but doesnt have enough action to keep my attention. we have also fished round pond in nashua and i would rate it between horseshoe and natacook. flints is probably my favorite local fishing spot. mill pond used to be good but i havent heard anything great about it this year. you can also catch just about anything in the nashua river.

read through the "anybody have any luck in new hampshire" thread. it is full of locations where people have had luck. good luck.