Effecting the weight!? Think about it this way, go out to bat without a toe guard, then half way through your innings tape a toe guard to the back of the bat. Will you feel the difference! You are best off getting one with a factory fitted toe guard, then when it starts to come off, use your own glue on it.
You can try using shoe goohttp://www.amazon.com/gp/product/B000BQR55G/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=1278548962&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B00135M0MM&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1HN5JFH0G642QRH3ET5J