hey guys, im kind of new to pouring plastics. REAL NEW. I have made alot of jigs in solid colors that i use to fish below Truman Dam. I wanted to make two color jigs like blk/chart, wht/chart etc... I have been cutting them in half then pouring the second color on top. I havent used them yet but have heard/read that this isent a very strong bond? When i give them a tug it seems strong enough? what do the experts think????