I've got a review here on the Hammer 7
http://www.pbnation.com/showthread.php?t=3918266
Keep in mind Im a pump newb,not new to paintball.Ive gotten 3 gamedays with it now and am still impressed
Being a pump player yourself I dont know if youd be interested in the extra features the H7 has over the Tracer(magfed/FS)
Theres a ton of reviews,mods,discussions on MCB,I'll have to give props to Kingmann for all the customer service and thread posts there,really convinced me to purchase it new