Sounds very good to me and I'd be ready to give it a try.

If you put 1,05BTC in Escrow here to a trusted member I will provide you 1 BTC to trade with on my behalf.

Should you succeed with 10-50% per week you will easily return 1,05 BTC to me after one week and keep the remaining profit for yourself. Should you fail I'll just take the Escrow and nobody got hurt.

Deal?